7B-i 

APPENDIX 7B. UNIT ENERGY CONSUMPTION FOR BATTERY CHARGERS AND 

EXTERNAL POWER SUPPLIES

LIST OF TABLES 

TABLE 7B.1 UECS FOR PRODUCT CLASS A1 (BASIC VOLTAGE DC OUTPUT), 2.5 

WATT REPRESENTATIVE UNIT ......................................................................................... 7B-1

TABLE 7B.2 UECS FOR PRODUCT CLASS A1 (BASIC VOLTAGE DC OUTPUT), 18 

WATT REPRESENTATIVE UNIT ......................................................................................... 7B-2

TABLE 7B.3 UECS FOR PRODUCT CLASS A1 (BASIC VOLTAGE DC OUTPUT), 60 

WATT REPRESENTATIVE UNIT ......................................................................................... 7B-2

TABLE 7B.4 UECS FOR PRODUCT CLASS A1 (BASIC VOLTAGE DC OUTPUT), 120 

WATT REPRESENTATIVE UNIT ......................................................................................... 7B-2

TABLE 7B.5 UECS FOR PRODUCT CLASS A2 (LOW VOLTAGE DC OUTPUT) .......... 7B-3

TABLE 7B.6 UECS FOR PRODUCT CLASS A3 (BASIC VOLTAGE AC OUTPUT) ....... 7B-3

TABLE 7B.7 UECS FOR PRODUCT CLASS A4 (LOW VOLTAGE AC OUTPUT) .......... 7B-4

TABLE 7B.8 MANUFACTURER UECS FOR BC PRODUCT CLASS 1 (LOW ENERGY, 

INDUCTIVE) ........................................................................................................................... 7B-4

TABLE 7B.9 MANUFACTURER UECS FOR BC PRODUCT CLASS 2 (LOW ENERGY, 

LOW VOLTAGE) .................................................................................................................... 7B-4

TABLE 7B.10 MANUFACTURER UECS FOR BC PRODUCT CLASS 3 (LOW ENERGY, 

MEDIUM VOLTAGE) ............................................................................................................. 7B-5

TABLE 7B.11 MANUFACTURER UECS FOR BC PRODUCT CLASS 4 (LOW ENERGY, 

HIGH VOLTAGE) ................................................................................................................... 7B-6

TABLE 7B.12 MANUFACTURER UECS FOR BC PRODUCT CLASS 5 (MEDIUM 

ENERGY, LOW VOLTAGE) .................................................................................................. 7B-6

TABLE 7B.13 MANUFACTURER UECS FOR BC PRODUCT CLASS 6 (MEDIUM 

ENERGY, HIGH VOLTAGE) ................................................................................................. 7B-7

TABLE 7B.14 MANUFACTURER UECS FOR BC PRODUCT CLASS 7 (HIGH ENERGY)

................................................................................................................................................... 7B-7

TABLE 7B.15 MANUFACTURER UECS FOR BC PRODUCT CLASS 8 (LOW ENERGY, 

LOW VOLTAGE DC INPUT) ................................................................................................. 7B-7

TABLE 7B.16 MANUFACTURER UECS FOR BC PRODUCT CLASS 9 (LOW ENERGY, 

HIGH VOLTAGE DC INPUT) ................................................................................................ 7B-8

TABLE 7B.17 MANUFACTURER UECS FOR BC PRODUCT CLASS 10 (LOW ENERGY, 

AC OUTPUT) ........................................................................................................................... 7B-8

TABLE 7B.18 TEST AND TEARDOWN UECS FOR BC PRODUCT CLASS 2 (LOW 

ENERGY, LOW VOLTAGE) .................................................................................................. 7B-9

TABLE 7B.19 TEST AND TEARDOWN UECS FOR BC PRODUCT CLASS 4 (LOW 

ENERGY, HIGH VOLTAGE) ............................................................................................... 7B-10

TABLE 7B.20 TEST AND TEARDOWN UECS FOR BC PRODUCT CLASS 5 (MEDIUM 

ENERGY, LOW VOLTAGE) ................................................................................................ 7B-10

TABLE 7B.21 TEST AND TEARDOWN UECS FOR BC PRODUCT CLASS 10 (LOW 

ENERGY, AC OUTPUT) ....................................................................................................... 7B-11

EERE-2008-BT-STD-0005 COMMENT 31
7B-1 

APPENDIX 7B. UNIT ENERGY CONSUMPTION FOR BATTERY CHARGERS AND 

EXTERNAL POWER SUPPLIES

This appendix to chapter 7 of the preliminary technical support document (TSD) for the 

battery chargers (BCs) and external power supplies (EPSs) energy conservation standards 

rulemaking contains typical annual unit energy consumption values (UECs) for BCs and EPSs. 

Reference-case UECs are displayed by candidate standard level (CSL) for each Class-A EPS and 

BC product class and application. The application-level UECs are inputs to the life-cycle cost 

and payback period analyses, while the shipment-weighted-average UECs shown in the bottom 

row of each table are inputs to the national impact analysis. Chapter 7 contains detailed 

explanations of how these UECs were calculated. 

Table 7B.1 through Table 7B.7 contain application-level UECs and weighted average 

UECs for Class A EPSs.

Table 7B.1 UECs for Product Class A1 (Basic Voltage DC Output), 2.5 Watt 

Representative Unit 

Application 2008 

Shipments CSL 0 CSL 1 CSL 2 CSL 3 CSL 4

(1000’s) (kWh/yr)

1 Answering Machines 20,175 5.0 3.3 2.8 2.5 2.4

2 Cordless Phones 19,151 5.0 3.3 2.8 2.5 2.4

3 Mobile Phones 13,140 2.6 1.6 1.1 0.9 0.8

4

Portable Video Game 

Systems 10,884

2.9 1.8 0.8 0.7 0.4

5 In-Vehicle GPS 7,660 0.2 0.1 0.1 0.1 0.1

6 Baby Monitors 3,000 4.1 2.6 1.9 1.7 1.5

7 Clock Radios 485 9.4 6.2 5.4 4.7 4.6

8 Caller ID Devices 460 9.4 6.2 5.4 4.7 4.6

9 Keyboards 419 4.5 2.7 1.3 1.0 0.6

10 Personal Digital 

Assistants 395 2.4 1.5 0.9 0.7 0.6

11 Breast Pumps 300 0.4 0.2 0.2 0.2 0.1

12 Wireless Headphones 100 4.1 2.6 2.0 1.7 1.5

13 Consumer Two-Way 

Radios 21

1.8 1.1 0.7 0.6 0.5

14 Electronic Pest 

Repellents 15 9.4 6.2 5.4 4.7 4.6

15 Guitar Effects Pedals 12 0.4 0.2 0.2 0.2 0.1

16 Pre-Amps 10 4.6 2.8 1.4 1.1 0.7

Weighted Average 3.8 2.5 1.9 1.7 1.6

EERE-2008-BT-STD-0005 COMMENT 31
7B-2 

Table 7B.2 UECs for Product Class A1 (Basic Voltage DC Output), 18 Watt Representative 

Unit 

Application

2008 

Shipments CSL 0 CSL 1 CSL 2 CSL 3 CSL 4

(1000’s) (kWh/yr)

1 LAN Equipment 27,581 22.6 17.6 14.7 12.2 10.3

2 VoIP Adapters 8,845 6.1 4.0 3.0 2.0 1.5

3 Digital Picture Frames 7,472 29.9 23.2 19.4 16.1 13.6

4 Portable DVD Players 7,140 1.0 0.7 0.6 0.5 0.4

5 MP3 Speaker Docks 7,012 5.8 3.8 2.8 1.8 1.3

6 Computer Speakers 3,880 14.2 10.6 8.6 6.8 5.6

7 Wireless Speakers 1,507 5.8 3.8 2.8 1.8 1.3

8 Camcorders 1,402 0.6 0.4 0.4 0.3 0.2

9 Portable Printers 614 0.6 0.4 0.4 0.3 0.2

10 Clock Radios 485 29.9 23.2 19.4 16.1 13.6

11 Image Scanners 400 5.5 3.5 2.5 1.6 1.1

12 External Hard Drives 374 6.0 4.3 3.4 2.5 2.0

13 Weed Trimmers 5 0.6 0.4 0.4 0.3 0.2

14 Hedge Trimmers 5 0.6 0.4 0.4 0.3 0.2

Weighted Average 15.5 11.8 9.7 7.9 6.6

Table 7B.3 UECs for Product Class A1 (Basic Voltage DC Output), 60 Watt Representative 

Unit 

Application

2008 

Shipments CSL 0 CSL 1 CSL 2 CSL 3 CSL 4

(1000’s) (kWh/yr)

1 Notebooks 30,225 10.9 9.7 8.1 6.8 5.0

2 Video Game Consoles 13,512 13.4 11.9 9.9 8.3 6.1

3

Ink Jet Imaging 

Equipment 5,557 13.7 12.0 10.5 9.1 6.6

4 Netbooks 3,700 8.9 7.9 6.5 5.4 4.0

Weighted Average 11.7 10.3 8.7 7.3 5.4

Table 7B.4 UECs for Product Class A1 (Basic Voltage DC Output), 120 Watt 

Representative Unit 

Application

2008 

Shipments CSL 0 CSL 1 CSL 2 CSL 3 CSL 4

(1000’s) (kWh/yr)

1 Notebooks 10,075 19.3 16.7 14.1 13.4 9.4

2 LED monitor 160 28.6 24.7 21.1 20.1 14.0

Weighted Average 19.4 16.8 14.2 13.6 9.4

EERE-2008-BT-STD-0005 COMMENT 31
7B-3 

Table 7B.5 UECs for Product Class A2 (Low Voltage DC Output) 

Application

2008 

Shipments CSL 0 CSL 1 CSL 2 CSL 3 CSL 4

(1000’s) (kWh/yr)

1 Mobile Phones 52,560 2.6 1.6 1.1 0.9 0.8

2 In-Vehicle GPS 7,660 0.2 0.1 0.1 0.1 0.1

3 MP3 Players 4,373 2.9 1.8 1.1 0.9 0.7

4

Portable Video Game 

Systems 2,893 2.9 1.8 0.8 0.7 0.4

5

Personal Digital 

Assistants 1,5822.4 1.5 0.9 0.7 0.6

6 Bluetooth Headsets 1,404 2.4 1.5 0.9 0.7 0.6

7 Digital Cameras 680 0.4 0.3 0.2 0.2 0.1

8 E-Books 522 2.9 1.8 1.1 0.9 0.7

9

Rechargeable 

Toothbrushes 243 2.9 1.8 1.1 0.9 0.7

10 Handheld GPS 150 0.2 0.1 0.1 0.1 0.1

11 Consumer Two-Way 

Radios 84 1.8 1.1 0.7 0.6 0.5

12 Rechargeable water 

Jets 24 2.9 1.8 1.1 0.9 0.7

13 Electronic Pest 

Repellents 15 9.4 6.2 5.4 4.7 4.6

14 Handheld Image 

Scanners 50.2 0.1 0.1 0.1 0.1

Weighted Average 2.4 1.5 1.0 0.8 0.7

Table 7B.6 UECs for Product Class A3 (Basic Voltage AC Output) 

Application

2008 

Shipments CSL 0 CSL 1 CSL 2 CSL 3 CSL 4

(1000’s) (kWh/yr)

1

Home Security 

Systems 4,219 9.9 7.4 6.1 4.8 4.0

2 Aquarium Accessories 1,750 29.9 23.2 19.4 16.1 13.6

3

Water 

Softeners/Purifiers 1,150 5.1 3.3 2.3 1.3 0.9

4 Indoor Fountains 500 29.9 23.2 19.4 16.1 13.6

5 Irrigation Timers 375 29.9 23.2 19.4 16.1 13.6

Weighted Average 15.7 12.0 9.9 8.0 6.7

EERE-2008-BT-STD-0005 COMMENT 31
7B-4 

Table 7B.7 UECs for Product Class A4 (Low Voltage AC Output) 

Application

2008 

Shipments CSL 0 CSL 1 CSL 2 CSL 3 CSL 4

(1000’s) (kWh/yr)

1 Aquarium Accessories 1,750 9.4 6.2 5.4 4.7 4.6

2 Indoor Fountains 500 6.8 4.5 3.9 3.4 3.3

Weighted Average 8.8 5.8 5.0 4.4 4.3

Table 7B.8 through Table 7B.17 contain application-level UECs and weighted-average 

UECs for each BC product class based on data gathered by DOE through interviews with 

manufacturers. For more information on DOE’s interviews with BC manufacturers and the data 

gleaned from these interviews, see chapter 5. 

Table 7B.8 Manufacturer UECs for BC Product Class 1 (Low Energy, Inductive) 

Application

2008 

Shipments CSL 0 CSL 1 CSL 2 CSL 3

(1000's) (kWh/yr)

1

Rechargeable 

Toothbrushes 4,868 10.0 7.0 3.5 1.5

2

Rechargeable water 

Jets 487 10.0 7.0 3.5 1.5

Weighted Average 10.0 7.0 3.5 1.5

Table 7B.9 Manufacturer UECs for BC Product Class 2 (Low Energy, Low Voltage)

Application

2008 

Shipments CSL 0 CSL 1 CSL 2 CSL 3

(1000's) (kWh/yr)

1 Mobile Phones 105,120 10.8 5.8 0.7 -

2 Answering Machines 20,175 13.6 9.6 2.5 -

3 Cordless Phones 19,151 13.6 9.6 2.5 -

4

Portable Video Game 

Systems 13,777 6.6 4.6 1.2 -

5 Digital Cameras 10,879 1.4 0.8 0.1 -

6 Shavers 6,579 9.5 6.1 1.8 -

7 MP3 Players 4,373 6.6 4.6 1.2 -

8

Home Security 

Systems 4,219 15.7 9.6 3.1 -

9

Consumer Two-Way 

Radios 4,177 8.3 4.5 0.5 -

10 In-Vehicle GPS 3,830 1.8 0.9 0.0 -

11 DIY Power Tools 

(Integral) 3,506 7.9 5.0 1.5 -

12 Baby Monitors 3,000 15.3 9.6 2.9 -

13 Beard and Mustache 

Trimmers 2,350 1.8 0.9 0.0 -

EERE-2008-BT-STD-0005 COMMENT 31
7B-5 

Application

2008 

Shipments CSL 0 CSL 1 CSL 2 CSL 3

(1000's) (kWh/yr)

14 Hair Clippers 1,517 1.8 0.9 0.0 -

15 Bluetooth Headsets 1,264 7.7 5.5 1.4 -

16 MP3 Speaker Docks 1,237 1.8 0.9 0.0 -

17 E-Books 464 1.8 0.9 0.0 -

18 Can Openers 285 1.8 0.9 0.0 -

19 Personal Digital 

Assistants 198 5.8 3.3 0.7 -

20 Handheld GPS 120 1.8 0.9 0.0 -

Weighted Average 10.0 6.0 1.2 -

Note: CSL 3 is not defined for this product class. 

Table 7B.10 Manufacturer UECs for BC Product Class 3 (Low Energy, Medium Voltage)

Application

2008 

Shipments CSL 0 CSL 1 CSL 2 CSL 3

(1000's) (kWh/yr)

1 Portable DVD Players 7,140 6.4 3.6 0.4 -

2 Camcorders 4,206 0.8 0.4 0.1 -

3 Toy Ride-On Vehicles 3,548 11.3 5.5 2.0 -

4 RC Toys 2,100 2.3 1.1 0.4 -

5

DIY Power Tools 

(External) 1,753 10.7 5.4 2.1 -

6 Handheld Vacuums 1,377 38.8 21.5 2.2 -

7

DIY Power Tools 

(Integral) 1,169 20.0 11.1 1.1 -

8 Stick Vacuums 863 38.8 21.5 2.2 -

9 Air Mattress Pumps 250 2.3 1.1 0.4 -

10 Universal Battery 

Chargers 240 28.1 15.4 1.6 -

11 Wireless Speakers 226 2.3 1.1 0.4 -

12 RC Cars (Hobby 

Grade) 125 2.3 1.1 0.4 -

13 Blenders 61 2.3 1.1 0.4 -

14 Mixers 58 2.3 1.1 0.4 -

Weighted Average 10.0 5.4 1.0 -

Note: CSL 3 is not defined for this product class. 

EERE-2008-BT-STD-0005 COMMENT 31
7B-6 

Table 7B.11 Manufacturer UECs for BC Product Class 4 (Low Energy, High Voltage)

Application

2008 

Shipments CSL 0 CSL 1 CSL 2 CSL 3

(1000's) (kWh/yr)

1 Notebooks 40,300 32.9 10.0 6.2 -

2

Professional Power 

Tools 11,688 79.4 15.9 7.6 -

3

DIY Power Tools 

(External) 5,259 20.5 5.8 3.1 -

4 Netbooks 3,700 33.1 10.1 6.1 -

5 Handheld Vacuums 2,797 32.7 9.8 6.5 -

6 Toy Ride-On Vehicles 1,774 21.9 4.8 2.4 -

7 Stick Vacuums 1,752 32.7 9.8 6.5 -

8 Robotic Vacuums 1,000 36.9 11.2 7.1 -

9 Sleep Apnea Machine 500 30.1 9.0 6.2 -

10 Medical Nebulizer 450 36.0 11.4 6.0 -

11 Portable Printers 246 4.5 1.1 0.6 -

12 Weed Trimmers 92 8.4 2.5 1.7 -

13 Hedge Trimmers 91 8.4 2.5 1.7 -

14 Universal Battery 

Chargers 60 22.7 7.0 4.5 -

15 Flashlights/Lanterns 50 16.9 5.1 3.4 -

Weighted Average 39.4 10.5 6.1 -

Note: CSL 3 is not defined for this product class. 

Table 7B.12 Manufacturer UECs for BC Product Class 5 (Medium Energy, Low Voltage)

Application

2008 

Shipments CSL 0 CSL 1 CSL 2 CSL 3

(1000's) (kWh/yr)

1 Toy Ride-On Vehicles 1,774 235.4 179.2 127.7 95.9

2

Marine/Automotive/

RV Chargers 500 103.3 99.1 10.6 7.3

3

Portable O2

Concentrator - Others 50 48.0 36.5 26.1 19.6

4

Portable O2

Concentrator - Higher 

Output

9 48.0 36.5 26.1 19.6

Weighted Average 202.3 158.4 100.0 75.0

EERE-2008-BT-STD-0005 COMMENT 31
7B-7 

Table 7B.13 Manufacturer UECs for BC Product Class 6 (Medium Energy, High Voltage)

Application

2008 

Shipments CSL 0 CSL 1 CSL 2 CSL 3

(1000's) (kWh/yr)

1 Electric Scooters 250 65.9 39.4 23.5 16.8

2 Mobility Scooters 192 85.3 61.6 36.7 27.4

3 Lawn Mowers 182 45.3 8.8 5.3 2.1

4 Wheelchairs 166 85.3 61.6 36.7 27.4

5 Motorized Bicycles 150 65.9 39.4 23.5 16.8

Weighted Average 69.3 41.9 25.0 18.0

Table 7B.14 Manufacturer UECs for BC Product Class 7 (High Energy)

Application

2008 

Shipments CSL 0 CSL 1 CSL 2 CSL 3

(1000's) (kWh/yr)

1 Golf Carts 214 290.0 250.0 200.0 150.0

Weighted Average 290.0 250.0 200.0 150.0

Table 7B.15 Manufacturer UECs for BC Product Class 8 (Low Energy, Low Voltage DC 

Input)

Application

2008 

Shipments CSL 0 CSL 1 CSL 2 CSL 3

(1000's) (kWh/yr)

1 MP3 Players 39,358 1.3 0.8 0.5 -

2 Mobile Phones 26,280 2.0 1.1 0.7 -

3 Digital Cameras 2,720 0.3 0.2 0.1 -

4

Personal Digital 

Assistants 1,779 0.9 0.5 0.3 -

5 Camcorders 1,402 0.1 0.1 0.0 -

6 Bluetooth Headsets 140 2.2 1.4 0.8 -

7 E-Books 116 0.4 0.2 0.1 -

8 Handheld GPS 30 0.4 0.2 0.1 -

Weighted Average 1.5 0.9 0.6 -

Note: CSL 3 is not defined for this product class. 

EERE-2008-BT-STD-0005 COMMENT 31
7B-8 

Table 7B.16 Manufacturer UECs for BC Product Class 9 (Low Energy, High Voltage DC 

Input)

Application

2008 

Shipments CSL 0 CSL 1 CSL 2 CSL 3

(1000's) (kWh/yr)

1 In-Vehicle GPS 15,320 1.2 0.8 0.5 -

2 Medical Nebulizer 90 9.3 5.7 3.4 -

3

Portable O2

Concentrator - Others 50 1.2 0.8 0.5 -

4 Flashlights/Lanterns 50 2.9 1.4 0.7 -

5

Portable O2

Concentrator - Higher 

Output

9 1.2 0.8 0.5 -

Weighted Average 1.3 0.8 0.5 -

Note: CSL 3 is not defined for this product class. 

Table 7B.17 Manufacturer UECs for BC Product Class 10 (Low Energy, AC Output)

Application

2008 

Shipments CSL 0 CSL 1 CSL 2 CSL 3

(1000's) (kWh/yr)

1

Uninterruptible Power 

Supplies 6,900 19.6 6.4 4.0 1.5

Weighted Average 19.6 6.4 4.0 1.5

Table 7B.18 through 

EERE-2008-BT-STD-0005 COMMENT 31
7B-9 

Table 7B.21 contain application-level UECs and weighted-average UECs for four BC product 

classes based on DOE’s tests and teardowns of BCs. DOE calculated test and teardown UECs for

product classes 2, 4, 5, and 10, but not for the other six product classes. DOE was unable to test 

products at CSL 3, since these products are not yet commercially available. For further 

discussion on product testing and teardowns, see chapter 5. 

Table 7B.18 Test and Teardown UECs for BC Product Class 2 (Low Energy, Low Voltage)

Application

2008 

Shipments CSL 0 CSL 1 CSL 2

(1000's) (kWh/yr)

1 Mobile Phones 105,120 - 7.7 1.2

2 Answering Machines 20,175 - 10.7 1.8

3 Cordless Phones 19,151 - 10.7 1.8

4

Portable Video Game 

Systems 13,777 - 4.4 0.8

5 Digital Cameras 10,879 - 1.0 0.2

6 Shavers 6,579 - 7.4 0.9

7 MP3 Players 4,373 - 4.4 0.8

8 Home Security Systems 4,219 - 12.5 1.1

9

Consumer Two-Way 

Radios 4,177 - 5.9 0.9

10 In-Vehicle GPS 3,830 - 1.4 0.2

11 DIY Power Tools 

(Integral) 3,506 - 6.3 0.7

12 Baby Monitors 3,000 - 12.1 1.2

13 Beard and Mustache 

Trimmers 2,350 - 1.4 0.2

14 Hair Clippers 1,517 - 1.4 0.2

15 Bluetooth Headsets 1,264 - 6.2 1.1

16 MP3 Speaker Docks 1,237 - 1.4 0.2

17 E-Books 464 - 1.4 0.2

18 Can Openers 285 - 1.4 0.2

19 Personal Digital 

Assistants 198 - 3.7 0.6

20 Handheld GPS 120 - 1.4 0.2

Weighted Average - 7.4 1.2

Note: CSL 0 is not defined for this product class. 

EERE-2008-BT-STD-0005 COMMENT 31
7B-10

Table 7B.19 Test and Teardown UECs for BC Product Class 4 (Low Energy, High Voltage)

Application

2008 

Shipments CSL 0 CSL 1 CSL 2

(1000's) (kWh/yr)

1 Notebooks 40,300 45.5 11.6 5.7

2

Professional Power 

Tools 11,688 26.3 9.0 9.9

3

DIY Power Tools 

(External) 5,259 17.7 5.3 3.4

4 Netbooks 3,700 41.3 10.7 5.8

5 Handheld Vacuums 2,797 52.4 12.9 5.4

6 Toy Ride-On Vehicles 1,774 10.8 3.3 2.9

7 Stick Vacuums 1,752 52.4 12.9 5.4

8 Robotic Vacuums 1,000 52.8 13.4 6.3

9 Sleep Apnea Machine 500 51.9 12.6 4.9

10 Medical Nebulizer 450 38.8 14.3 6.0

11 Portable Printers 246 2.6 0.8 0.6

12 Weed Trimmers 92 13.5 3.3 1.4

13 Hedge Trimmers 91 13.5 3.3 1.4

14 Universal Battery 

Chargers 60 38.0 10.6 3.6

15 Flashlights/Lanterns 50 27.3 6.7 2.8

Weighted Average 39.4 10.5 6.1

Table 7B.20 Test and Teardown UECs for BC Product Class 5 (Medium Energy, Low 

Voltage)

Application

2008 

Shipments CSL 0 CSL 1 CSL 2

(1000's) (kWh/yr)

1 Toy Ride-On Vehicles 1,774 248.4 201.7 -

2

Marine/Automotive/RV 

Chargers 500 198.5 116.2 -

3

Portable O2

Concentrator - Others 50 50.5 41.1 -

4

Portable O2

Concentrator - Higher 

Output

9 50.5 41.1 -

Weighted Average 232.7 179.3 -

Note: CSL 2 is not defined for this product class. 

EERE-2008-BT-STD-0005 COMMENT 31
7B-11

Table 7B.21 Test and Teardown UECs for BC Product Class 10 (Low Energy, AC Output)

Application

2008 

Shipments CSL 0 CSL 1 CSL 2

(1000's) (kWh/yr)

1

Uninterruptible Power 

Supplies 6,900 19.6 6.4 -

Weighted Average 19.6 6.4 -

Note: CSL 2 is not defined for this product class. 

EERE-2008-BT-STD-0005 COMMENT 31