### 7A-i

APPENDIX 7A. BATTERY CHARGER AND EXTERNAL POWER SUPPLY USAGE

PROFILES

LIST OF TABLES

TABLE 7A.1 APPLICATION STATES, LOADING POINTS, AND WEEKLY USAGE VALUES

USED TO CALCULATE ENERGY CONSUMPTION FOR CLASS A EXTERNAL POWER

SUPPLIES .............................................................................................................................................. 7A-1

TABLE 7A.2 DAILY USAGE VALUES USED TO CALCULATE ENERGY CONSUMPTION FOR

BATTERY CHARGERS ........................................................................................................................ 7A-6

### 7A-1

This appendix lists the assumptions used to calculate reference-case unit energy consumption values for Class A external power

supplies ( Table 7 A. 1 ) and battery chargers ( Table 7A. 2 ). Applications states, usage profiles, and loading points used to calculate UECs for

the low-savings and high-savings sensitivity analyses can be found in Appendix 8B. Applications are ordered by product category, per the

diagram found in Appendix 3A. Sources for all of the usage profiles below can be found in the Excel workbook that accompanies chapter 7.

For a discussion on how these values were derived and used, see chapter 7 of the technical support document for battery chargers and external

power supplies.

Table 7 A

. 1 Application States, Loading Points, and Weekly Usage Values Used to Calculate Energy Consumption for Class A External

Power Supplies

Application Application

State 1 Application

State 2 Applications

State 3 Application

State 4 Application

State 5 Application

State 6 No Load

[ hrs/wk ] Unplugged

[ hrs/wk ] Loading

Point Usage

[ hrs/wk ] Loading

Poi nt Usage

[ hrs/wk ] Loading

Point Usage

[ hrs/wk ] Loading

Point Usage

[ hrs/wk ] Loading

Point Usage

[ hrs/wk ] Loading

Point Usage

[ hrs/wk ]

Pre

- Amps Active Idle Sleep/Off

60.0% 6.72 2.0% 40.32 1.0% 120.96

Wireless Speakers Active Idle Sleep/Off

60.0% 6.72 2.0% 40.32 1.0% 120.96

Guitar Effects

Pedals Active Idle

160

60.0% 5 2.0% 3

Keyboards Active Idle Sleep/Off

60.0% 5 2.0% 3 1.0% 160

MP3 Speaker

Docks Active Idle Sleep/Off

60.0% 6.72 2.0% 40.32 1.0% 120.96

Clock Radios Active

60.0% 168

MP3 Players Charging Maintenance 59.5 56 37.1% 10.08 17.2% 42.42

Personal Digital

Assistants Charging Maintenance 49 77 37.1% 9.31 17.2% 32.69

Netbooks * On and Charging Off and Charging On Sleep Off

42.35

66.3% 5.75 38.2% 5.75 28.1% 18.18 1.3% 5.98 0.6% 89.99

Notebooks * On and Charging On with DVD

playing Off and Charging On Sleep Off 26.60

### 7A-2 Application Application

State 1 Application

State 2 Applications

State 3 Application

State 4 Application

State 5 Application

State 6 No Load

[ hrs/wk ] Unplugged

[ hrs/wk ] Loading

Point Usage

[ hrs/wk ] Loading

Poi nt Usage

[ hrs/wk ] Loading

Point Usage

[ hrs/wk ] Loading

Point Usage

[ hrs/wk ] Loading

Point Usage

[ hrs/wk ] Loading

Point Usage

[ hrs/wk ]

66.3% 4.14 57.1% 5.18 38.2% 4.14 28.1% 25.03 1.3% 21.76 0.6% 81.14

Computer Speakers Active Off

60.0% 63.33 1.0% 104.67

External Hard

Drives Active Idle

63 63

60.0% 21 2.0% 21

External Media

Drives Active Idle

63 63

60.0% 21 2.0% 21

Image Scanners Active Idle Sleep/Off

60.0% 5 2.0% 3 1.0% 160

Handheld Image

Scanners Charging Maintenance

161 37.1% 2.8 17.2% 4.2

Ink Jet Imaging

Equipment Active Ready Off

60.0% 5.06 15.2% 11.38 10.3% 151.57

Portable Printers Charging Maintenance

161 37.1% 2.8 17.2% 4.2

E

- Books Charging Maintenance 59.5 56 37.1% 10.08 17.2% 42.42

LAN Equipment * O n

45.5% 168

Wi

- Fi Access

Points * O n

45.5% 168

In

- Vehicle GPS Charging Maintenance

161 37.1% 2.8 17.2% 4.2

Handheld GPS Charging Maintenance

161 37.1% 2.8 17.2% 4.2

Bluetooth Headsets Charging Maintenance

49 77 37.1% 9.31 17.2% 32.69

Consumer Two

Way Radios Charging Maintenance

36.75 98 37.1% 7.6825 17.2% 25.5675

Mobile Phones * Charging Maintenance 49 77

### 7A-3 Application Application

State 1 Application

State 2 Applications

State 3 Application

State 4 Application

State 5 Application

State 6 No Load

[ hrs/wk ] Unplugged

[ hrs/wk ] Loading

Point Usage

[ hrs/wk ] Loading

Poi nt Usage

[ hrs/wk ] Loading

Point Usage

[ hrs/wk ] Loading

Point Usage

[ hrs/wk ] Loading

Point Usage

[ hrs/wk ] Loading

Point Usage

[ hrs/wk ]

42.7% 20.93 23.9% 21.07

Caller ID Devices Active

60.0% 168

Cordless Phones * Charging Maintenance No Battery

32.9% 144.68 27.4% 8.2032 14.1% 15.12

Answering

Machines * Charging Maintenance No Battery

32.9% 144.68 27.4% 8.2032 14.1% 15.12

VoIP Adapters Transmitting Idle

60.0% 7 2.0% 161

Baby Monitors Charging Maintenance

3.5 37.1% 7 17.2% 157.5

Breast Pumps Active Idle

160

60.0% 5 2.0% 3

RC Toys Charging Maintenance

161 37.1% 2.8 17.2% 4.2

Portable Video

Game Systems * Charging Maintenance 59.5 56 35.1% 3.9 2.4% 48.6

Video Game

Consoles * On with Disc No Disc

- Idle Off

49.8% 31.07 42.6% 2.88 1.2% 134.05

Handheld Vacuums Charging Maintenance

1

8 17.2% 159

Robotic Vacuums Charging Maintenance

3.5 37.1% 7 17.2% 157.5

Stick Vacuums Charging Maintenance No Battery

37.1% 8 17.2% 159 14.1% 1

Electronic Pest

Repellents Active

60.0% 168

Home Security

Systems Maintenance

17.0% 168

Irrigation Timers Active

### 7A-4 Application Application

State 1 Application

State 2 Applications

State 3 Application

State 4 Application

State 5 Application

State 6 No Load

[ hrs/wk ] Unplugged

[ hrs/wk ] Loading

Point Usage

[ hrs/wk ] Loading

Poi nt Usage

[ hrs/wk ] Loading

Point Usage

[ hrs/wk ] Loading

Point Usage

[ hrs/wk ] Loading

Point Usage

[ hrs/wk ] Loading

Point Usage

[ hrs/wk ]

60.0% 168

Water

Softeners/Purifiers Active Idle

60.0% 5 2.0% 16 3

Blenders Charging Maintenance

161 37.1% 2.8 17.2% 4.2

Can Openers Charging Maintenance

161 37.1% 2.8 17.2% 4.2

Electric Knives Charging Maintenance

161 37.1% 2.8 17.2% 4.2

Mixers Charging Maintenance

161 37.1% 2.8 17.2% 4.2

Camcorders Charging Maintenance

161 37.1% 2.8 17.2% 4.2

Digital Cameras Charging Maintenance

4.76 152.6 37.1% 3.38 17.2% 7.26

Digital Picture

Frames Active

60.0% 168

Portable DVD

Players Active Idle

160

60.0% 5 2.0% 3

Air Mattress Pumps Active Idle

160

60.0% 5 2.0% 3

Aquarium

Accessories Active

60.0% 168

Indoor Fountains Active

60.0% 168

Flashlights/Lanterns Charging Maintenance

161 37.1% 2.8 17.2% 4.2

Universal Battery

Chargers Charging Maintenance

37.1% 0.7 17.2% 167.3

Weed Trimmers Charging Maintenance 161

### 7A-5 Application Application

State 1 Application

State 2 Applications

State 3 Application

State 4 Application

State 5 Application

State 6 No Load

[ hrs/wk ] Unplugged

[ hrs/wk ] Loading

Point Usage

[ hrs/wk ] Loading

Poi nt Usage

[ hrs/wk ] Loading

Point Usage

[ hrs/wk ] Loading

Point Usage

[ hrs/wk ] Loading

Point Usage

[ hrs/wk ] Loading

Point Usage

[ hrs/wk ]

37.1% 2.8 17.2% 4.2

Hedge Trimmers Charging Maintenance

161 37.1% 2.8 17.2% 4.2

Lawn Mowers Charging Maintenance

161 37.1% 2.8 17.2% 4.2

Rechargeable

Toothbrushes Charging Maintenance 59.5 56 37.1% 10.08 17.2% 42.42

Rechargeable water

Jets Charging Maintenance 59.5 56 37.1% 10.08 17.2% 42.42

Beard and

Mustache Trimmers Charging Maintenance

3.5 37.1% 7 17.2% 157.5

Hair Clippers Charging Maintenance

161 37.1% 2.8 17.2% 4.2

Shavers Charging Maintenance

3.5 37.1% 7 17.2% 157.5

DIY Power Tools

(Integral) Charging Maintenance 3.99 121.86 37.1% 2.01 17.2% 40.14

DIY Power Tools

(External) Charging Maintenance No battery 1.99 121.86 37.1% 2.01 17.2% 40.14 14.1% 1.99

Electric Scooters Charging Maintenance 59.5 56 37.1% 10.08 17.2% 42.42

Motorized Bicycles Charging Maintenance 59.5 56 37.1% 10.08 17.2% 42.42

Toy Ride

- On

Vehicles Charging Maintenance

59.5 56 37.1% 10.08 17.2% 42.42

*Loading points derived from DOE test data.

### 7A-6 Table 7A

. 2 Daily Usage Values Used to Calculate Energy Consumption for Battery Chargers

Application Active + Maintenance No Battery Unplugged Off Charges/ Day [hrs/day] [hrs/day] [hrs/day] [hrs/day]

Wireless Speakers 1.00 23.00 0.14

MP3 Speaker Docks 1.00 23.00 0.14

MP3 Players 7.50 8.50 8.00 0.29

Personal Digital Assistants 3.50 8.50 12.00 0.29

Netbooks 18.00 0.00 6.00 0.71

Notebooks 20.23 0.17 3.60 0.51

Uninterruptible Power Supplies 24.00 0.00

Portable Printers 1.00 23.00 0.14

E

- Books 1.00 23.00 0.14

In

- Vehicle GPS 1.00 23.00 0.14

Handheld GPS 1.00 23.00 0.14

Bluetooth Headsets 13.00 11.00 0.43

Consumer Two

- Way Radios 4.63 5.38 14.00 0.55

Mobile Phones 6.00 7.00 11.00 0.71

Cordless Phones 21.84 2.16 0.71

Answering Machines 21.84 2.16 0.71

Baby Monitors 23.50 0.50 0.14

RC Cars (Hobby Grade) 1.00 23.00 0.14

RC Toys 1.00 23.00 0.14

Portable Video Game Systems 7.50 8.50 8.00 0.29

Handheld Vacuums 23.90 0.10 0.20

Robotic Vacuums 23.50 0.50 0.50

Stick Vacuums 23.90 0.10 0.20

Home Security Systems 24.00 0.02

Blenders 1.00 23.00 0.14

Can Openers 1.00 23.00 0.14

Electric Knives 1.00 23.00 0.14

Mixers 1.00 23.00 0.14

Camcorders 0.27 0.27 23.46 0.04

Digital Cameras 1.03 1.17 21.80 0.09

Portable DVD Players 4.00 20.00 0.04

### 7A-7

Application Active + Maintenance No Battery Unplugged Off Charges/ Day [hrs/day] [hrs/day] [hrs/day] [hrs/day]

Air Mattress Pumps 1.00 23.00 0.14

Flashlights/Lanterns 12.50 0.01 11.50 0.09

Universal Battery Chargers 16.00 4.00 4.00 0.07

Weed Trimmers 6.15 0.05 17.80 0.05

Hedge Trimmers 6.15 0.05 17.80 0.05

Lawn Mowers 22.00 2.00 0.05

Rechargeable Toothbrushes 23.90 0.10 0.26

Rechargeable water Jets 23.90 0.10 0.26

Beard and Mustache Trimmers 1.00 23.00 0.14

Hair Clippers 1.00 23.00 0.14

Shavers 14.15 2.03 7.82 0.19

DIY Power Tools (Integral) 12.30 0.10 11.60 0.10

DIY Power Tools (External) 6.78 1.10 15.32 0.80 0.64

Professional Power Tools 8.00 16.00 2.70

Electric Scooters 15.50 8.50 0.43

Motorized Bicycles 15.50 8.50 0.43

Golf Carts 7.74 8.13 8.13 0.36

Toy Ride

- On Vehicles 3.91 0.10 20.00 0.70

Wheelchairs 12.00 12.00 0.70

Mobility Scooters 12.00 12.00 0.70

Marine/Automotive/RV Chargers 22.00 2.00 0.05

Sleep Apnea Machine s 24.00 0.02

Medical Nebulizer 12.00 12.00 1.00

Portable O2 concentrator

- Higher Output 1.00 23.00 0.14

Portable O2 concentrator

- Others 1.00 23.00 0.14

Wireless Headphones 23.50 0.50 0.14