1 | Energy Efficiency and Renewable Energy 

Battery Chargers Test Procedure

Notice of Data Availability

Public Meeting

June 3rd, 2014

Jeremy DommProject ManagerAppliance StandardBuilding Technologie

Docket Number: EERE‐2

battery_chargers_and_

plies@ee.doe.gov
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Welcome• Introductions (around the room)

• Role of the Facilitator• Ground Rules

- Speak one at a time.

- Say your name for the record – there will be a complete tra

meeting.

- Be concise – share the ‘air‐time’.

- Keep the focus here – cell phones on silent; limit sidebar co

- Webinar participants turn phone on mute; “raise your hand

recognized to speak.

• Housekeeping Items• Agenda Review• Opening Remarks
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Agenda

9:00 – 9:15 am

9:15 – 9:30 am

9:30 – 10:30 am

10:30 – 11:30 am

11:30 – 12:00 am

Welcome, Introductions, Opening Statements

History of Test Procedure and Energy Conservatio

Results and Analyses Summary

Request for Information Topics

Questions/Comments & Wrap‐up
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Listening Via the Webcast• The Department is broadcasting this meeting live ov

Internet.

• DOE is providing the webcast to accommodate stake

who are unable to attend the public meeting in pers

• The web broadcast allows stakeholders to listen in an

slides.

• All stakeholders are encouraged to submit written co

after the public meeting.
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Purpose of the Public Meeting• Present new DOE test results for multi‐voltage, multi

battery chargers.

• Invite comment on DOE’s “Request for Information” t

presented in the Notice of Data Availability.

• Invite participants to provide summary comments or 

and raise additional issues for discussion.
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Public Meeting Slides Topics

1 History of Test Procedure and Energy Conservation Standar2 Results and Analyses Summary3 Request for Information Topics
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Test Procedure History• Part A of the Energy Policy and Conservation Act

(EPCA) of 1975 (Public Law 94‐163):

– Established the “Energy Conservation Program

for Consumer Products Other Than

Automobiles.”

– Subsequent amendments to EPCA authorized

DOE to regulate the energy efficiency ofadditional types of consumer products,

including battery chargers.

• Test Procedure Final Rule (71 FR 71339, December

8th, 2006)

– This Final Rule was subsequently amended in

June 2011 (71 FR 31750, June 1, 2011) to add an

active‐mode energy consumption test.
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Test Procedure and Standards Rulemaking Hist

Milestone Dat

Test Procedure Final Rule December Standards Framework June 4th, Standards Preliminary Analysis September 1Test Procedure Amendment Final Rule June 1st, Standards Notice of Proposed Rulemaking March 27tStandards Request for Information March 26tExternal Power Supply Standards Final Rule February 1Test Procedure Notice of Data Availability May 9th, 

Related Market Activity: As of February 2013 manufactu

are required to meet new standards for products sold 

California. California Energy Commission (CEC) Standar

rely on DOE’s test procedure for compliance testing.
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Test Procedure Objectives• Repeatable• Reproducible• Representative• Not overly burdensome

• Anticipates technology changes

• Discourages circumvention• Unambiguous• Harmonizes with related test procedures

• Consistent with the statute
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Public Meeting Slides Topics

1 History of Test Procedure and Energy Conservation Standar2 Results and Analyses Summary3 Request for Information Topics
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Results and Analyses• DOE has completed testing of several models found 

public “Appliance Efficiency Database”

– DOE was unable to replicate results for some models tested

• Specifically Multi‐Voltage, Multi‐Capacity Battery Chargers

– DOE selected batteries for each charger based on Section 4

4.1 of the Battery Charger Test Procedure (10 CFR 430, Subpart 

• Specifically according to Sections 4.3.a.2 and 4.3.b for these 

– Battery selection has a significant impact on test data, ther

interested in whether these discrepancies are related to ba

selection

– Units listed in the CEC database identified both application

batteries and stand alone battery charger units

• When applicable DOE purchased chargers with detachable ba

carte, and therefore purchased batteries for testing separate
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Battery Selection – Section 4.3 of 10 CFR 430, Subpart B, Ap

4.3. Selection of Batteries To Use for Testing

a. For chargers with integral batteries, the battery packaged with the charger shall be used for te

with detachable batteries, the battery or batteries to be used for testing will vary depending on 

any batteries packaged with the battery charger.

(1) If batteries are packaged with the charger, batteries for testing shall be selected from t

packaged with the battery charger, according to the procedure in section 4.3.b.

(3) If no batteries are packaged with the charger and the instructions do not specify or rec

batteries for use with the charger, batteries for testing shall be selected from any that are 

use with the charger, according to the procedure in section 4.3.b.

c. A charger is considered as:

(1) Single‐capacity if all associated batteries have the same rated charge capacity (see def

a batch charger, all configurations of the batteries have the same rated charge capacity.

(2) Multi‐capacity if there are associated batteries or configurations of batteries that have 

charge capacities.d. The selected battery or batteries will be referred to as the “test battery” and will be used thro

remainder of this test procedure.

(2) If no batteries are packaged with the charger, but the instructions specify or recomm

use with the charger, batteries for testing shall be selected from those recommended or 

instructions, according to the procedure in section 4.3.b.

b. From the detachable batteries specified above, the technician shall use Table 4.1 to select th

used for testing depending on the type of charger being tested. Each row in the table represen

exclusive charger type. The technician shall find the single applicable row for the UUT, and test 

those requirements.
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Battery Selection – Table 4.1 of 10 CFR 430, Subpart B, Appe

 Per Table 4.1 DOE determined that 3 tests were to be conducted
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Results – Model 1 – Multi‐Voltage, Multi‐Capa

Battery Selected E24 (Wh) Pm (W) Psb (W) BE (Wh)

Battery 1 (NiCd) 39.56 1.01 0.59 8.68

Battery 2 (NiCd) 70.37 0.62 0.59 28.77

Battery 3 (NiCd) 88.44 4.45 0.59 38.08

Battery 3 (LiIon) 50.91 0.8 0.59 38.47

Additional

Battery A (NiCd)

64 3.03 0.59 23.73

Additional

Battery B (NiCd)

69.87 3.76 0.59 28.89

CEC Data:DOE Data:

Battery Selected E24 (Wh) Pm (W) Psb (W) BE(Wh)

Unidentified 24.26 0.44 0.19 26.97

Note: This battery charger is capable of charging multi-chemistry battery 
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Results – Model 2 – Multi‐Voltage, Multi‐Capa

CEC Data:DOE Data:

Battery Selected E24 (Wh) Pm (W) Psb (W) BE(Wh)

Unidentified 88.11 0.41 0.31 54.00

Battery Selected E24 (Wh) Pm (W) Psb (W) BE (Wh)

Battery 1 (NiCd) 66.03 2.17 0.88 9.87

Battery 2/3 (NiCd) 152.69 3.69 0.88 50.24
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Issues for Comment

Issue 1: How are batteries being selected when testing multi‐vo

multi‐capacity battery chargers? How is the test procedure bei

to battery chargers capable of charging multi‐chemistry batterie

Issue 2: What rating is used for battery energy when multiple b

tested?Issue 3: Is the test procedure sufficiently detailed to ensure acc

consistent results are obtained when testing multi‐voltage, mul

and/or multi‐chemistry battery chargers or are specific modifica

necessary in order to accommodate testing of these type of bat

chargers?
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Public Meeting Slides Topics

1 History of Test Procedure and Energy Conservation Standar2 Results and Analyses Summary3 Request for Information Topics
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RFI – Topic A• Testing of a Unit with Battery Used Exclusively for Ba

Power

– DOE has tested and investigated a unit with an integral bat

backup power

– Primary functions cannot be shutoff during testing and the

DOE test procedure may capture energy use from non‐batt

functionality

– During DOE’s testing, DOE noticed no drop in power typica

battery charging system
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RFI – Topic A

Issue 4: How are integral battery chargers used with application

batteries that are solely used when mains power is lost (i.e. bac

batteries) being tested?

Issue 5: Is the test procedure sufficiently detailed to ensure accu

results when testing applications that are equipped with back‐u

batteries? Are specific modifications necessary in order to acco

testing of these types of battery chargers?
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RFI – Topic B• Testing of Wireless (Inductive) Battery Chargers for D

Environments

– DOE has become aware of new wireless charging platforms 

environments (e.g. charging pads for smartphones).

– DOE is concerned the current test procedure is not suited t

battery charging systems in the future

• These types of systems had not been contemplated when the 

battery charger test procedure was first developed and DOE d

proposing standards for these type of battery chargers in the 
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RFI – Topic B

Issue 6: Can the current test procedure be applied to wireless b

chargers (i.e. inductive chargers) that are designed for dry envir

to ensure accurate and repeatable results? If not, what changes 

procedure, if any, are required to ensure that these types of bat

chargers can be tested in a repeatable manner that produces ac

results?Issue 7: DOE seeks information regarding what types of wireless 

charger technologies are currently available or may become ava

the future, and how manufacturers are applying (or would apply

procedure to these products.

Issue 8: DOE is also interested in how the outputs that are curre

measured or calculated in the current battery charger test proce

apply (or would apply) to wireless battery chargers, and whethe

additional measurements should be conducted as part of the te

to ensure that the measured results are accurate and repeatabl
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RFI – Topic C• Adaptive Charging Systems

– DOE has become aware of new adaptive charging systems 

charge batteries more quickly when paired with specific po

– These systems have battery chargers which communicate w

supplies to deliver varying voltages and current conditions 

the state of the battery and which external power supply is 

– DOE is uncertain how the BC in these systems would be ide

rated (and advertised) according to the applicable standar

and current due to there charge control system

– DOE is interested in how manufacturers are currently testin

these products
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RFI – Topic C

Issue 9: Does the test procedure account for the efficiency adva

disadvantages that occur when testing adaptive charging system

these type of battery chargers sold with a specific power supply 

allows for adaptive charging and does the efficiency change whe

with a different power supply?

Issue 10: How should the test procedure be applied to battery c

systems with adaptive external power supplies? What changes t

procedure, if any, would be needed to ensure the repeatability a

accuracy of test results?
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Any other issues?

Questions?
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DOE Seeks Comment on its Test Procedure• In all correspondence, please include all of the follo

– Test Procedure for Battery Chargers– Docket Number: EERE‐2014‐BT‐NOA‐0012

– Regulatory Identification Number (RIN): 1904‐AC03

• Email: BatteryChargers2014NOA0012@ee.do• Comment period closes: June 30, 2014

Postal: Hand Delivery/Courier:Ms. Brenda Edwards

U.S. Department of Energy

Building Technologies Program, Mailstop EE‐2J

1000 Independence Avenue, SWWashington, DC 20585‐0121

Ms. Brenda Edwards

U.S. Department of Energy

Building Technologies Program

950 L’Enfant Plaza, SWWashington, DC 20024

Tel: 202‐586‐2945
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Relevant URLs• DOE Appliance Standards:

– http://www1.eere.energy.gov/buildings/appliance_standards/index.html

• BC DOE Product Website:

– http://www1.eere.energy.gov/buildings/appliance_standards/product.as

• BC Rulemaking Website:

– http://www1.eere.energy.gov/buildings/appliance_standards/rulemaking

• Rulemaking Docket (EERE‐2012‐BT‐NOA‐0012):

– http://www.regulations.gov/#!docketDetail;D=EERE‐2014‐BT‐NOA‐0012
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Contact Information

DOE Project Manager

Mr. Jeremy Dommu

Jeremy.Dommu@ee.doe.gov

(202) 586‐9870

Building Technologies Program, Mailstop EE‐2J

1000 Independence Avenue, SW

Washington, DC 20585‐0121

DOE General Counsel

Mr. Michael Kido, ESQ

Michael.Kido@hq.doe.gov

(202)‐586‐8145

Office of General Counsel, Mailstop GC‐71

1000 Independence Avenue, SW

Washington, DC 20585–0121