1 | Building Technologies Program eere.energy.gov Public Service of Colorado Ponnequin Wind Farm Proposed Test Procedures for Battery Chargers and External Power Supplies



### Appliances and Commercial Equipment Standards Program May 7, 2010 U.S. Department of Energy

## Welcome

• Introductions

• Role of the Facilitator

• Ground Rules (norms)

– Listen as an ally

– Use short, succinct statements/keep to the point

– Hold sidebar conversations outside the room

– Focus on issues, not personalities

– One person speak at a time (raise hand to be recognized; state your name for the record)

– Set cell phones to silent/vibrate

• Housekeeping Items

• Agenda Review

• Opening Remarks

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## Listening Via the Webcast

• The Department is broadcasting this public meeting live over the Internet.

• DOE is providing the webcast to accommodate stakeholders unable to attend the meeting.

• The webcast allows stakeholders to listen in and view the presentation slides.

– However, only stakeholders physically in attendance may provide questions or comments during the meeting.

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## Agenda

9:00 – 9:05 am Welcome 9:05 – 9:10 am Introduction and Agenda Review 9:10 – 9:40 am Stakeholder Presentations 9:40 – 9:55 am Legal Authority and Background 9:55 – 10:55 am BC Active Mode Test Procedure 10:55 – 11:10 am Break 11:10 am – 12:10 pm BC Active Mode Test Procedure (cont.) 12:10 – 12:20 pm BC and EPS Standby and Off Mode Test Procedures 12:20 – 12:30 pm Single-Voltage EPS Active Mode Test Procedure 12:30 – 12:40 pm Multiple-Voltage EPS Active Mode Test Procedure 12:40 – 12:50 pm Final Comments and Adjourn

* If meeting runs late, there will be a 1 hour break for lunch.

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## The Purpose of the Test Procedure Public Meeting

• Present an overview of the Statute and all Departmental actions regarding battery chargers (BCs) and external power supplies (EPSs).

• Present the proposed test procedures for BCs and EPSs.

• Seek oral and written comments on the proposed test procedure.

• Discuss and respond to specific issues or questions related to the proposal.

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## DOE Requests Feedback

Feedback Is Requested Especially on Issues Identified in Handout Materials

• In all correspondence, please refer to the Test Procedure by:

– Test Procedure for Battery Chargers (BCs) and External Power Supplies (EPSs),

– Docket Number EERE

– 2009

– BT

– TP

– 0019, and

– Regulatory Identification Number (RIN) 1904

– AC03

• Email : BC&EPS_Test_Proc@ee.doe.gov

Postal Mail : Courier : Ms. Brenda Edwards Ms. Brenda Edwards U.S. Department of Energy U.S. Department of Energy Building Technologies Program, Building Technologies Program Mailstop EE-2J 950 L ’ Enfant Plaza, S.W., 6 th Floor 1000 Independence Avenue, SW Washington, DC 20024 Washington, DC 20585-0121 Telephone: (202) 586-2945 

### Comment Period Closes June 16, 2010

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## Issues for Comment

Issue Box The Department welcomes comments, data, and information relating to the BC and EPS test procedure. Throughout this presentation specific issues will be brought up for discussion on slides such as this . The issue numbers correspond to those in the NOPR and handout sheets. Nonetheless , comments about any part of the document or presentation are welcome.

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## Agenda

9:00 – 9:05 am Welcome 9:05 – 9:10 am Introduction and Agenda Review 9:10 – 9:40 am Stakeholder Presentations 9:40 – 9:55 am Legal Authority and Background 9:55 – 10:55 am BC Active Mode Test Procedure 10:55 – 11:10 am Break 11:10 am – 12:10 pm BC Active Mode Test Procedure (cont.) 12:10 – 12:20 pm BC and EPS Standby and Off Mode Test Procedures 12:20 – 12:30 pm Single-Voltage EPS Active Mode Test Procedure 12:30 – 12:40 pm Multiple-Voltage EPS Active Mode Test Procedure 12:40 – 12:50 pm Final Comments and Adjourn

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## Stakeholder Presentations

• The floor is now open for stakeholders to present introductory comments.

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## Agenda

9:00 – 9:05 am Welcome 9:05 – 9:10 am Introduction and Agenda Review 9:10 – 9:40 am Stakeholder Presentations 9:40 – 9:55 am Legal Authority and Background 9:55 – 10:55 am BC Active Mode Test Procedure 10:55 – 11:10 am Break 11:10 am – 12:10 pm BC Active Mode Test Procedure (cont.) 12:10 – 12:20 pm BC and EPS Standby and Off Mode Test Procedures 12:20 – 12:30 pm Single-Voltage EPS Active Mode Test Procedure 12:30 – 12:40 pm Multiple-Voltage EPS Active Mode Test Procedure 12:40 – 12:50 pm Final Comments and Adjourn

10 | Building Technologies Program eere.energy.govDOE ’ s Statutory Authority for BC-EPS Comes from EPCA and its Amendments

• The Energy Policy and Conservation Act of 1975 (EPCA) established energy conservation standards and methods of test procedure development for a variety of consumer products.

• The Energy Policy Act of 2005 (EPACT) amended EPCA, adding BCs and EPSs to the appliance standards program.

• The Energy Independence and Security Act of 2007 (EISA) further amended EPCA resulting in the current rulemaking.



## EPCA

1975 EPACT 2005 EISA 2007 Department of Energy

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## EISA Requirements Pertaining to BC-EPS Test Procedures

• Publish test procedures for Standby and Off Mode for BCs and EPSs.

– Published on March 27, 2009.



### • Publish final rule potentially amending Class A EPS standards.

– EISA Class A EPS standards became effective July 1, 2008.



### • Publish final rule potentially setting BC standards.

• Publish final rule determining whether to set standards for non-Class A EPSs ( e.g. , multiple-voltage EPSs).

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## EISA Seven-Year Review Requirement

• Additionally, EISA amended EPCA, requiring DOE to review its test procedures every seven years.

– Improve measurement representativeness or accuracy,

– Reduce burden, or

– Determine that such amendments are unnecessary.

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## Timeline of Milestones for BC and EPS Rulemakings

2005 EPACT 2005

2006 EPACT En-Masse TP Final Rule (Included BC and EPS TPs) 2007 EISA 2007 2008 EISA Class A EPS Standards Standby & Off Mode TP Final Rule 2009

2010 BC & EPS TP Final Rule 2011 BC & EPS Standards Final Rule

. . . BC & EPS TP NOPR Apr. 2, 2010 Dec. 8, 2006

Jul. 1, 2008 Mar. 27, 2009

Dec. 2010 (Proj.) Jul. 2011 (Proj.)

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## Summary of Existing DOE BC and EPS Test Procedures

Covered Product Standby Inactive Active Mode Off Mode Mode Mode 1

15 | Building Technologies Program eere.energy.gov Class A EPS General

App. Z 2 , Sec. 3(a) and

4(a)(i) App. Z, Sec. 3(a) and

4(a)(i) App. Z, Sec. 3(a) and 4(a)(ii) N/ASwitchSelectable

NonClass A EPS High- Power Medical Motor-Operated / Detach. Battery

Multiple-Voltage [Reserved] [Reserved] [Reserved] N/A

BC General [Reserved] App. Y 3 , Sec. 3 and 4(c) App. Y, Sec. 3 and 4(d) App. Y, Sec. 3 and 4(a) 1. Refers to the DOE inactive mode test measurement which covers maintenance and standby modes. Also, “ nonactive mode ”

. 2. Refers to Appendix Z to subpart B of 10 CFR part 430. 3. Refers to Appendix Y to subpart B of 10 CFR part 430. Product Class

## Agenda

9:00 – 9:05 am Welcome 9:05 – 9:10 am Introduction and Agenda Review 9:10 – 9:40 am Stakeholder Presentations 9:40 – 9:55 am Legal Authority and Background 9:55 – 10:55 am BC Active Mode Test Procedure 10:55 – 11:10 am Break 11:10 am – 12:10 pm BC Active Mode Test Procedure (cont.) 12:10 – 12:20 pm BC and EPS Standby and Off Mode Test Procedures 12:20 – 12:30 pm Single-Voltage EPS Active Mode Test Procedure 12:30 – 12:40 pm Multiple-Voltage EPS Active Mode Test Procedure 12:40 – 12:50 pm Final Comments and Adjourn

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## Proposed Amendments to BC-EPS Test Procedures

Covered Product Class Product General Class A SwitchEPS Selectable Standby Inactive Active Mode Off Mode Mode Mode

N/A

NonClass A EPS High- Power Medical Motor-Operated / Detach. Battery

Multiple-Voltage [Reserved] [Reserved] [Reserved] N/A

BC General [Reserved] Existing TP Existing TP Existing TP

Existing TP Existing TP Existing TP

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## BC Test Procedure Summary

DOE is proposing changes to the BC test procedure (TP):

• Delete all parts of current DOE inactive TP.

– Based on the EPA ENERGY STAR TP (2005).



### • Add active and maintenance mode TP.

– Based on the California Energy Commission (CEC) TP (2008).

– With modifications to ease burden or improve accuracy.

Issue #9 DOE seeks comment on the removal of the nonactive measurement.

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## The Need for a BC Test Procedure

• DOE is required to evaluate standards for BCs.

– TP provides consistent method of evaluating BC energy consumption.

– TP also necessary for enforcing standards once established.



### • Test procedure must be representative of typical use.

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## Current DOE BC Test Procedure

Energy Ratio =

DISCH STANDBY MAINT E EE + (1) Energy consumption in maint. (battery fully charged after 24 hours)

(2) Energy consumption in standby (battery disconnected)

(3) Energy delivered by the battery during controlled discharge 

# BC E MAINT



# BC E STANDBY



### E DISCH mains

mains

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## Amending the BC Test Procedure

• Current BC test procedure is not suitable for standards.

– Does not measure energy consumed during active mode.

– Cannot repeatably test all types of consumer BCs.



### • DOE researched existing worldwide test procedures:

– ENERGY STAR TP 

### Same as DOE

– Canadian Standards Association TP

– California Energy Commission (CEC) TP

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## Summary of CEC Test Procedure

• Interested parties expressed support for the CEC TP during framework document public meeting (July 16, 2009).

• Version 2.2 of the CEC TP covers all modes of operation:

– Active (charge) – Maintenance

– Standby (no battery) – Off



### • DOE has performed numerous tests using this TP and considers it to be accurate and appropriate.

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## Summary of CEC Test Procedure (cont.)

• DOE proposes to incorporate sections of the CEC TP:

– Definitions – Test conditions and setup

– Charge and maintenance test – Discharge test (i.e., active mode test)

– Any departures are discussed in the following slides.



### • DOE proposes to retain but amend the current DOE standby and off mode test procedures.

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## Summary of CEC Test Procedure (cont.)

(1) Energy consumption in active mode (battery charging over 24 hours) 

# BC E 24
(2) Energy consumption in maintenance mode (battery fully charged, final 4 hours of charge test) 

# BC E MAINT
(3) Energy delivered by the battery during controlled discharge



### E DISCH

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## Summary of CEC Test Procedure (cont.)

Issue #1 DOE seeks comment from interested parties on the proposed approach for testing BCs in active mode, in particular the adoption and modification of the CEC test procedure.

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## Structure of Current DOE BC Test Procedure

1. Scope 2. Definitions 3. Test Apparatus and General Instructions 4. Test Measurement

a. Inactive Mode Measurement b. Active Mode Measurement [Reserved]
c. Standby Mode Measurement d. Off Mode Measurement

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## Proposed Changes

1. Scope

– Restrict scope to chargers for U.S. operation only 

### 2. Definitions

– Delete nonactive DOE definitions

– Modify and add CEC definitions

– Delete nonactive DOE instructions 

### 3. Test Apparatus and General Instructions

– Delete nonactive DOE instructions 

### Necessary for Active

– Add CEC instructions (with some modifications) 

### Mode Test 4. Test Measurement

– Add CEC instructions (with some modifications)

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## 1. BC Scope: Input Voltage

• The DOE BC test procedure currently encompasses all BCs, regardless of input voltage.

• DOE proposes only covering AC-input chargers operating at 115 volts and 60 hertz.

– Ensures that all BCs intended for use in the US are covered.

– Provide consistency with the EPS TP.

– DC-input chargers would also be covered.

Issue #2 The Department seeks comment on limiting the scope to chargers with DC or AC US-line voltage (115 volts at 60 hertz) input.

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## 1. BC Scope: Golf Cars and Other Consumer Motive Equipment

• The CEC test procedure contains two parts:

– Part 1 applies to BCs with input power 2 kilowatts or less.

– Part 2 a pplies to larger industrial chargers and chargers for golf cars and other consumer motive equipment .



### • DOE proposes to include all consumer products in scope.

– Proposed TP based on part 1 of the CEC TP.

– Also applicable to golf cars and other consumer motive equipment.

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## 1. BC Scope: Golf Cars and Other Consumer Motive Equipment (cont.)

Issue #3 DOE invites comment on both approaches for incorporating golf cars and other consumer motive equipment.
In particular, DOE seeks comment on the applicability of part 1 of the CEC test procedure to BCs for golf cars and other consumer motive equipment and the testing burden of part 2 of the CEC test procedure compared to part 1.

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## Structure of Current DOE BC Test Procedure

1. Scope 2. Definitions 3. Test Apparatus and General Instructions 4. Test Measurement

a. Inactive Mode Measurement b. Active Mode Measurement [Reserved]
c. Standby Mode Measurement d. Off Mode Measurement

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## 2. BC Definitions: Revisions

• DOE proposes updating definitions to increase clarity or provide consistency with CEC test procedure.

• Definitions proposed for modification include:

– Active mode

– Multi-port charger

– Multi-voltage a la carte charger

– Standby mode

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## 2. BC Definitions: Additions

• DOE proposes adding definitions to be consistent with CEC, IEEE standard 1515-2000, or DOE EPS TP.

• Definitions proposed for addition include:

– active power or real power (P)

– ambient temperature

– apparent power (S)

– batch charger

– battery rest period

– rated energy

– capacity

– C-rate

– crest factor – equalization

– instructions or manufacturer ’ s instructions

– measured charge capacity

– power factor

– rated battery voltage

– rated charge capacity

– total harmonic distortion (THD)

– unit under test (UUT)

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## 2. BC Definitions: Additions (cont.)

Example: Rated Charge Capacity

– Used to calculate discharge rate.



### • CEC definition:

– “ The capacity, usually given in ampere-hours (Ah) or milliampere -hours ( mAh ), specified by the manufacturer . . . ”



### • Proposed DOE definition:

– “ The capacity the manufacturer declares the battery can store under specified test conditions . . . in ampere-hours (Ah) . . . ”

– Based on CEC test procedure with clarifications

Issue #4 DOE invites interested parties to comment on the deletion, modification, and addition of definitions to be consistent with CEC or international standards.

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## Structure of Current DOE BC Test Procedure

1. Scope 2. Definitions 3. Test Apparatus and General Instructions 4. Test Measurement

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## 3. BC Test Apparatus and General Instructions (cont.)

• DOE proposes to modify the following CEC provisions prior to incorporation:

– Confidence intervals 

### Apply to all tests – Temperature range

– AC input voltage and frequency

– Selection of charge rate for test

– Treatment of batteries with no rated capacity



### • DOE is also considering alternatives and invites comment on the following provisions:

– Selection of batteries for test

– Treatment of additional functionality

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## 3. BC Test Apparatus and General Instructions: Confidence Intervals

• The CEC TP specifies measurement uncertainty.

• DOE proposes incorporating the CEC uncertainty requirements, with the addition of an explicit confidence qualifier. 0.5 W

– “ M easurements of active power of 0.5 W or greater shall be made with an uncertainty of ≤ 2% at the 95% confidence level

. ”

– Consistent with:

 Standard engineering practice

 IEC standard 62301.
± 2%

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### 3. BC Test Apparatus and General Instructions: Temperature and Voltage



### • DOE proposes raising the temperature range for testing to 25°C ± 5°C.

– CEC temperature range is 20°C ± 5°C.

– Lessens testing burden.



### • DOE proposes requiring testing only at 115 volts and 60 hertz for AC chargers.

– Ensures that all US BCs can be tested.

– Provide consistency with the EPS TP

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## 3. BC Test Apparatus and General Instructions: Review

1. Scope 2. Definitions 3. Test Apparatus and General Instructions

– Confidence intervals

– Temperature range 

### Apply to all tests

– AC input voltage and frequency

– Selection of charge rate for test

– Treatment of batteries with no rated capacity 

### Apply to

– Selection of batteries for test 

### special cases

– Treatment of additional functionality 

### 4. Test Measurement

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## 3. BC Test Apparatus and General Instructions: Charge Rate

• CEC test procedure states:

– ‘‘ If the battery charger has user controls to select from two or more charge rates . . . the test shall be conducted with each of the possible choices. ’’



### • DOE believes that users will typically select the fastest charge rate recommended for typical operation.

• Therefore, to ease testing burden DOE proposes conducting the test at the fastest available charge rate.

Issue #5 The Department invites comments on only requiring testing at the fastest charge rate, when user controls are present.

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### 3. BC Test Apparatus and General Instructions: No Rated Capacity

• The CEC test procedure does not provide detailed instructions for obtaining the discharge current in the absence of rated battery charge capacity.

– “ . . . technician shall determine the discharge current which meets the following requirements. ”


### • DOE proposes an explicit iterative method: 1. Measure discharge time at 0.5 ampere rate. 2. Calculate trial discharge rate from discharge time. 3. Measure discharge time at trial discharge rate; refine if needed.

Issue #8 The department welcomes comment on the iterative process proposed for determining the capacity for batteries with no rated capacity.

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### Apply to all tests

Apply to special cases 

## 3. BC Test Apparatus and General Instructions: Review

1. Scope 2. Definitions 3. Test Apparatus and General Instructions

– Confidence intervals

– Temperature range

– AC input voltage and frequency

– Selection of charge rate for test

– Treatment of batteries with no rated capacity

– Selection of batteries for test 

### Consistent with CEC, but

– Treatment of additional functionality 

### seeking comments on 4. Test Measurement alternatives.

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## 3. BC Test Apparatus and General Instructions: Batteries

• DOE proposes to adopt the CEC requirement that multivoltage, multi-port, and/or multi-capacity chargers be tested numerous times, with a variety of batteries:

– May result in up to 3 days of testing



### • DOE is also considering tests using only the most typical battery for a given BC.

Issue #6 The Department invites comments on the typical batteries used with chargers not typically packaged with batteries, e.g. , AA/AAA and 12 volt lead-acid chargers.

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## 3. BC Test Apparatus and General Instructions: Additional Functionality

• DOE proposes to incorporate the CEC instructions regarding additional functionality of embedded BCs.

– Disconnecting and/or switching off the additional functionality should decrease the energy consumption to a negligible level.

1. Use physical 2. Provide an disconnection as a interface to allow signal to device to users to turn off disable the additional the additional functionality. functionality.

Issue #7 The Department seeks comments on its proposed approach for dealing with battery chargers that have additional functionality.

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## 3. BC Test Apparatus and General Instructions: Review

1. Scope 2. Definitions 3. Test Apparatus and General Instructions

– Confidence intervals

– Temperature range

– AC input voltage and frequency

– Selection of charge rate for test

– Treatment of batteries with no rated capacity

– Selection of batteries for test

– Treatment of additional functionality 

### 4. Test Measurement

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## Agenda

9:00 – 9:05 am Welcome 9:05 – 9:10 am Introduction and Agenda Review 9:10 – 9:40 am Stakeholder Presentations 9:40 – 9:55 am Legal Authority and Background 9:55 – 10:55 am BC Active Mode Test Procedure 10:55 – 11:10 am Break 11:10 am – 12:10 pm BC Active Mode Test Procedure (cont.) 12:10 – 12:20 pm BC and EPS Standby and Off Mode Test Procedures 12:20 – 12:30 pm Single-Voltage EPS Active Mode Test Procedure 12:30 – 12:40 pm Multiple-Voltage EPS Active Mode Test Procedure 12:40 – 12:50 pm Final Comments and Adjourn

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## Agenda

9:00 – 9:05 am Welcome 9:05 – 9:10 am Introduction and Agenda Review 9:10 – 9:40 am Stakeholder Presentations 9:40 – 9:55 am Legal Authority and Background 9:55 – 10:55 am BC Active Mode Test Procedure 10:55 – 11:10 am Break 11:10 am – 12:10 pm BC Active Mode Test Procedure (cont.) 12:10 – 12:20 pm BC and EPS Standby and Off Mode Test Procedures 12:20 – 12:30 pm Single-Voltage EPS Active Mode Test Procedure 12:30 – 12:40 pm Multiple-Voltage EPS Active Mode Test Procedure 12:40 – 12:50 pm Final Comments and Adjourn

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## Structure of Current DOE BC Test Procedure

1. Scope 2. Definitions 3. Test Apparatus and General Instructions 4. Test Measurement

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## 4. BC Test Measurement

• DOE proposes to modify the following CEC provisions prior to incorporation:

– Reorder test procedure; will impact

• Battery conditioning

• Battery preparation

– End-of-discharge voltages



### • DOE is also considering alternatives and invites comment on the following provisions:

– Active and maintenance mode test duration

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## 4. BC Test Measurement: Reversing Testing Order

• The current CEC test procedure requires a charge test followed by discharge test.
0. Preparatory 1. Charge Test 2. Discharge Test Discharge • Measured • Measured
• Not Measured

• Analyzer Required 

# ? Battery Voltage

Time

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### • Current CEC test procedure:

1. Charge Test

• Measured 2. Discharge Test

• Measured 0. Preparatory Discharge

• Not Measured

• Analyzer Required 

## 4. BC Test Measurement: Reversing Testing Order (cont.)

• DOE proposes to reverse the testing order to lessen testing burden.
0. Preparatory 1. Discharge Test 2. Charge Test Charge • Measured • Measured
• Not Measured

• No Analyzer Required Battery Voltage

Time 

# ?

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## 4. 

## BC Test Measurement: Reversing Testing Order (cont.)

CEC Test Procedure 0. Preparatory Discharge

• Not Measured

• Analyzer Required

0. Preparatory Charge

• Not Measured

• No Analyzer Required 1. Charge Test

• Measured

1. Discharge Test

• Measured 2. Discharge Test

• Measured

2. Charge Test

• Measured Proposed DOE Test Procedure

Issue #11 DOE seeks comment from interested parties on the proposed reversal of the CEC test procedure order.

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## 4. BC Test Measurement: End-of-Discharge Voltage

• DOE is also proposing discharge conditions for the following novel battery chemistries, in addition to those currently in the CEC test procedure.

Battery Chemistry Discharge Rate C End-of-Discharge Voltage Volts per Cell Nanophosphate Lithium Ion (power tools) 0.2 2.0

Silver Zinc (notebook computers) 0.2 1.2

Issue #12 DOE seeks comment on the end-of-discharge voltages for novel chemistries.

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## 4. BC Test Measurement: Charge Test Duration

• DOE proposes to adopt the CEC 24-hour charge and maintenance mode test.

– 24-hour charge provides uniformity between tests of different chargers.



### • DOE is also considering an optional shortened charge and maintenance mode test.

– Majority of BCs tested require 13 hours or less to charge.

– Little new information provided through extended testing.

– Would free up valuable laboratory equipment, decreasing testing burden.

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## 4. BC Test Measurement: Charge Test Duration (cont.)

• Testing technician could shorten the test:

– Run charge test until BC or instructions indicate completion

• If no indication, at least 4 hours.

– Evaluate input power over the next hour.

– If less than 2% change over the next hour, terminate measurement.



### • The data up to this point would be recorded and then extrapolated over the remaining 24 hours:

t = 0 

## E ' = E + P X (24 h

- t ) 24 CHARGE STEADY

- STATE STEADY

- STATE t STEADY

- STATE

55 | Building Technologies Program eere.energy.govCEC Test Procedure and Proposed DOE Test Procedure 

## 4. BC Test Measurement: Charge Test Duration (cont.)

24-Hour Charge and Maint. Mode Test

56 | Building Technologies Program eere.energy.gov Optional Shortened Test Procedure Under Consideration Charge Test

Eval. Period and Maint. Mode Test

## 4. BC Test Measurement: Charge Test Duration (cont.)

• May not capture wake-ups in maintenance mode

– Resulted in 6.5 percent discrepancy in E 24 for one fast charger.

Issue #10 DOE is proposing using a 24-hour charge and maintenance energy measurement consistent with the CEC test procedure, but is inviting interested parties to comment on incorporating an optional, shorter test period.

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## 4. BC Test Measurement: Issues Excluded from the Proposal

• DOE presented several additional issues during the Framework Document meeting on July 16, 2009.

– Incorporating usage profiles.

– Directly measuring the output energy of the battery charger.

– Testing at various depths of discharge.



### • DOE is not proposing amendments relating to these issues.

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## Structure of Current DOE BC Test Procedure

1. Scope 2. Definitions 3. Test Apparatus and General Instructions 4. Test Measurement

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## Agenda

9:00 – 9:05 am Welcome 9:05 – 9:10 am Introduction and Agenda Review 9:10 – 9:40 am Stakeholder Presentations 9:40 – 9:55 am Legal Authority and Background 9:55 – 10:55 am BC Active Mode Test Procedure 10:55 – 11:10 am Break 11:10 am – 12:10 pm BC Active Mode Test Procedure (cont.) 12:10 – 12:20 pm BC and EPS Standby and Off Mode Test Procedures 12:20 – 12:30 pm Single-Voltage EPS Active Mode Test Procedure 12:30 – 12:40 pm Multiple-Voltage EPS Active Mode Test Procedure 12:40 – 12:50 pm Final Comments and Adjourn

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## Proposed Amendments to BC-EPS Test Procedures

Covered Product Class Product General Class A SwitchEPS Selectable

NonClass A EPS High- Power Medical Motor-Operated / Detach. Battery

Multiple-Voltage

BC General Standby Inactive Active Mode Off Mode Mode Mode

N/A

[Reserved] [Reserved] [Reserved] N/A

[Reserved] Existing TP Existing TP Existing TP

Existing TP Existing TP Existing TP

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## Standby and Off Mode Test Procedures for Both BCs and EPSs

• Standby mode

– On/off switch set to ON

– One-hour test period

– Connected to power source

– Disconnected from battery or load



### • Off mode E STANDBY ON

OFF 

### EPS or BC

– On/off switch set to OFF 

### EPS or BC

– One-hour test period

– Connected to power source

– Disconnected from battery or load 

### E OFF ON

OFF

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### Standby and Off Mode Test Procedures for Both BCs and EPSs (cont.)



### • Based on suggestions from interested parties, DOE proposes shortening the 1 hour measurement period.

– DOE proposes the following testing period:



### • 30 minute warm-up to achieve thermal stability
• 10 minute measurement

Issue #13 The Department invites comments on changes to the standby and off mode measurement period.

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## Agenda

9:00 – 9:05 am Welcome 9:05 – 9:10 am Introduction and Agenda Review 9:10 – 9:40 am Stakeholder Presentations 9:40 – 9:55 am Legal Authority and Background 9:55 – 10:55 am BC Active Mode Test Procedure 10:55 – 11:10 am Break 11:10 am – 12:10 pm BC Active Mode Test Procedure (cont.) 12:10 – 12:20 pm BC and EPS Standby and Off Mode Test Procedures 12:20 – 12:30 pm Single-Voltage EPS Active Mode Test Procedure 12:30 – 12:40 pm Multiple-Voltage EPS Active Mode Test Procedure 12:40 – 12:50 pm Final Comments and Adjourn

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## Proposed Amendments to BC-EPS Test Procedures

Covered Product

Class A EPS

NonClass A EPS

BC General Standby Inactive Off Mode Mode Mode Product Class Active Mode

General

N/ASwitchSelectable High- Power Medical Motor-Operated / Detach. Battery

Multiple-Voltage [Reserved] [Reserved] [Reserved] N/A

[Reserved] Existing TP Existing TP Existing TP

Existing TP Existing TP Existing TP

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## Review of Single-Voltage EPS Test Procedure

• DOE is considering amending its single-voltage EPS TP to resolve ambiguities when testing certain EPSs:

– EPSs that must identify or otherwise exchange information ( i.e. , communicate) with their loads

– EPSs that limit current below nameplate output current

– High-power EPSs that list two nameplate output currents



### • Vast majority of EPSs would be tested as before.

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## EPSs that Communicate with Loads

• DOE is considering amending its single-voltage EPS TP to permit testing of EPSs that communicate.

– Example: USB compliant EPSs

– TP requires disconnection of all data lines during testing

• Disconnecting may impact operation.



### • DOE is considering allowing manufacturers to supply an appropriate test fixture.

Issue #14 DOE seeks comment on the possible modification of the single-voltage EPS test procedure to accommodate EPSs that must communicate with their loads.

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## EPSs with Output Current Limiting

• DOE is considering amending its single-voltage EPS TP to clarify testing of EPSs that limit output at less than nameplate output current.

• TP requires testing at 100% of nameplate output current.

• Alternatives considered:

100% 0% 20% 40% 60% 80% 100%

0% 25% Percentage of Nameplate Output Current 50% 75%Efficiency

– Exclude affected loading point from average.

– Shift the loading points so no longer affected.

– Report the efficiency as 0% for the affected loading point.

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## High-Power EPSs with Two Nameplate Currents

• Some high-power EPSs have more than one nameplate output current.

– Maximum continuous versus intermittent current.



### • DOE is considering specifying continuous current to set loading points for efficiency testing.

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## EPSs with Output Current Limiting and Two Nameplate Output Currents

Issue #15 DOE seeks comment on the possible further modification of the single-voltage EPS test procedure to accommodate EPSs with:

• output current limiting and

• high output power.

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## Agenda

9:00 – 9:05 am Welcome 9:05 – 9:10 am Introduction and Agenda Review 9:10 – 9:40 am Stakeholder Presentations 9:40 – 9:55 am Legal Authority and Background 9:55 – 10:55 am BC Active Mode Test Procedure 10:55 – 11:10 am Break 11:10 am – 12:10 pm BC Active Mode Test Procedure (cont.) 12:10 – 12:20 pm BC and EPS Standby and Off Mode Test Procedures 12:20 – 12:30 pm Single-Voltage EPS Active Mode Test Procedure 12:30 – 12:40 pm Multiple-Voltage EPS Active Mode Test Procedure 12:40 – 12:50 pm Final Comments and Adjourn

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## Proposed Amendments to BC-EPS Test Procedures

Covered Product Class Product General Class A SwitchEPS Selectable

NonClass A EPS

BC General Standby Inactive Active Mode Off Mode Mode Mode

N/A High- Power Medical Motor-Operated / Detach. Battery

Multiple-Voltage [Reserved] [Reserved] [Reserved] N/A

[Reserved] Existing TP Existing TP Existing TP

Existing TP Existing TP Existing TP

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## Multiple Voltage EPS Test Procedure

• DOE proposed a multiple-voltage EPS TP during the 2008 standby and off mode rulemaking.

– Stakeholders commented that averaging efficiency measurements at 25%, 50%, 75%, and 100% of nameplate output current was not representative of typical use.

0% 20% 40% 60% 80% 100%Efficiency

0% 25% 50% 75% 100% Percentage of Nameplate Output Current

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## Multiple Voltage EPS Test Procedure (cont.)

• DOE proposes measuring efficiency at each loading point without averaging the results.

– TP would output separate efficiency measurements for each loading point.

– Results weighted in standard to represent typical use.

Individual Efficiencies

Standard No-Load Power TP: 4 Active Mode Tests 1 No-Load Mode Test

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## Multiple Voltage EPS Test Procedure (cont.)

Issue #16 DOE seeks comments on all issues pertaining to testing of multiple-voltage EPSs.
• In particular, DOE invites comments on reporting 5 separate loading conditions (no-load, 25, 50, 75, and 100 percent of nameplate output current) without averaging the results.

• Additionally, DOE seeks comment on how it should weight these measurements in an energy conservation standards rulemaking for multiple-voltage EPSs.

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## Agenda

9:00 – 9:05 am 9:05 – 9:10 am 9:10 – 9:40 am 9:40 – 9:55 am 9:55 – 10:55 am 10:55 – 11:10 am 11:10 am – 12:10 pm 12:10 – 12:20 pm 12:20 – 12:30 pm 12:30 – 12:40 pm 12:40 – 12:50 pm Welcome Introduction and Agenda Review Stakeholder Presentations Legal Authority and Background BC Active Mode Test Procedure Break BC Active Mode Test Procedure (cont.) BC and EPS Standby and Off Mode Test Procedures Single-Voltage EPS Active Mode Test Procedure Multiple-Voltage EPS Active Mode Test Procedure Final Comments and Adjourn

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## Stakeholder Presentations

• The floor is now open for stakeholders to present final comments.

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## DOE Requests Feedback

Feedback Is Requested Especially on Issues Identified in Handout Materials

• In all correspondence, please refer to the Test Procedure by:

– Test Procedure for Battery Chargers (BCs) and External Power Supplies (EPSs),

– Docket Number EERE

– 2009

– BT

– TP

– 0019, and

– Regulatory Identification Number (RIN) 1904

– AC03

• Email : BC&EPS_Test_Proc@ee.doe.gov

Postal Mail : Courier : Ms. Brenda Edwards Ms. Brenda Edwards U.S. Department of Energy U.S. Department of Energy Building Technologies Program, Building Technologies Program Mailstop EE-2J 950 L ’ Enfant Plaza, S.W., 6 th Floor 1000 Independence Avenue, SW Washington, DC 20024 Washington, DC 20585-0121 Telephone: (202) 586-2945 

### Comment Period Closes June 16, 2010

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## Agenda

9:00 – 9:05 am 9:05 – 9:10 am 9:10 – 9:40 am 9:40 – 9:55 am 9:55 – 10:55 am 10:55 – 11:10 am 11:10 am – 12:10 pm 12:10 – 12:20 pm 12:20 – 12:30 pm 12:30 – 12:40 pm 12:40 – 12:50 pm Welcome Introduction and Agenda Review Stakeholder Presentations Legal Authority and Background BC Active Mode Test Procedure Break BC Active Mode Test Procedure (cont.) BC and EPS Standby and Off Mode Test Procedures Single-Voltage EPS Active Mode Test Procedure Multiple-Voltage EPS Active Mode Test Procedure Final Comments and Adjourn

79 | Building Technologies Program eere.energy.gov