Handout: Framework Document Public Meeting (7/16/2009) 

Battery Chargers and External Power Supplies 

The following is a list of the types of information that DOE would evaluate as part of its analysis 

regarding the market, usage and technical details related to battery chargers, external power supplies, 

and their accompanying applications, e.g., cellular telephones, rechargeable power tools, routers, and 

handheld vacuums. 

For the following categories of information, DOE will primarily examine industry-wide BC/EPS data and marketwide shipment/lifetime data rather than data particular to a specific company or model. 

Applications with Battery Chargers and/or External Power Supplies

1) Annual Shipments for Sale in U.S. (market size in units) 

2) Average Useful Product Lifetime (years)

Applications with Battery Chargers

3) Nominal Battery Voltage (volts)

4) Nominal Battery Capacity (amp-hours) 

5) Time to Full Charge from 100% Depth-of-Discharge (%)

6) Typical Charges per Week (charges/week)

7) Typical Depth of Discharge (%)

Typical hours spent each week (hours/week) in the following modes (total=168 hours):

8) Active Mode (charging)

9) Maintenance Mode

10) No Battery Mode (standby)

11) Unplugged (disconnected from wall outlet and stowed)

Applications with Wall Adapters/External Power Supplies

12) Range of Wall Adapter Nameplate Output Power (W)

Typical wall adapter output power (Watts or as percent of nameplate output):

13) Active Mode (application operating)

14) Active Mode (application in standby)

15) Active Mode (application off)

16) No-Load Mode (application disconnected)

Typical hours spent each week (hrs/wk) in the following states (total=168 hours):

17) Active Mode (application operating)

18) Active Mode (application in standby)

19) Active Mode (application off)

20) No-Load Mode (application disconnected)

21) Unplugged (disconnected from wall outlet and stowed)

Information submitted to DOE will be treated in a manner consistent with the Freedom of Information Act and all other applicable 

Federal law.

EERE-2008-BT-STD-0005 COMMENT 09
Applications for Battery Chargers and External Power Supplies 

Category Subcategory Application

Audio

(Audio equipment is that which is used exclusively for audio. 

This does not include any equipment which is primarily intend 

for use as a computer component.)

Component Audio

1. Amateur Radios

2. Pre-Amps

3. Wireless Speakers

Musical Instruments

4. Electric Music Instruments

5. Guitar Effects Pedals

6. Keyboards

Portable Audio & Accessories

7. MP3 Speaker Docks

8. Portable CD Players & Radios

9. Portable Media/MP3 Players

Computers and Peripherals

(Includes all computers and all equipment directly related to 

computing. Though some products can be used as stand alones, 

all have the ability to be connected to a computer.)

Computers

10. Handheld Computers

11. Netbooks

12. Notebooks

Desktop Accessories

13. Computer Speakers

14. External Hard Drives

15. External Media Drives

16. Uninterruptible Power Supplies

Document Manipulation

17. Flatbed Image Scanners

18. Handheld Image Scanners

19. Inkjet Computer Printers

20. Multifunction Devices (MFD)

21. Portable Printers

Document Reader 22. E-Books

Networking

23. LAN Equipment

24. Modems (External)

25. Routers

26. Wi-Fi Access Points

Geospatial Equipment

(Includes all forms of gobal positioning system devices.)

(No Subcategory)

27. In-Vehicle GPS

28. Handheld GPS

Telephony

(Includes all telephone applications.)

Mobile

29. Bluetooth Headsets

30. Consumer Two-Way Radios

31. Mobile Phones

Stationary

32. Caller ID Devices

33. Cordless Phones/Answering Machines

34. VoIP Adapters

EERE-2008-BT-STD-0005 COMMENT 09
Applications for Battery Chargers and External Power Supplies 

Category Subcategory Application

Household

(Very broad category. Subgroups likely have very different usage 

profiles from one another. Includes many small end use 

electronic devices found in U.S. homes.)

Electronics

35. Baby Monitors

36. Camcorders

37. Digital Cameras

38. Digital Picture Frames

39. Video Games

Floorcare

40. Handheld Vacuums

41. Robotic Vacuums

42. Stick Vacuums

Home Security 43. Home Alarm Systems

Kitchen Appliances

44. Rechargeable Blenders

45. Rechargeable Can Openers

46. Rechargeable Electric Knives

47. Rechargeable Mixers 

Other Household

48. Air Mattress Pumps

49. Aquarium Accessories

50. Breast Pumps

51. Electronic Pest Repelents

52. Indoor Fountains

53. RC Cars (Hobby Grade)

54. RC Toys

55. Rechargeable Flashlights

56. Irrigation Timers

57. Universal Battery Chargers

58. Water Softeners/Purifiers

Outdoor Appliances

(All products directly relate to lawn and garden care.)

(No Subcategory)

59. Cordless Weed Trimmers

60. Cordless Hedge Trimmers

61. Electric Lawn Mowers (Cordless)

Personal Care

(These products tend to have shallow depths of discharge 

because of their short use times.)

(No Subcategory)

62. Beard and Mustache Trimmers

63. Hair Clippers

64. Shavers

65. Rechargeable Toothbrushes

Power Tools

(All external power supply and battery powered tools included.)

(No Subcategory)

66. DIY Power Tools (Integral)

67. DIY Power Tools (External)

68. Professional Power Tools

Transport

(Products in this category are for small transportation units that 

use battery chargers. Tend of have large battery capacities in 

comparison to other categories.)

Electric Vehicles

69. Motorized Bicycles

70. Other Mobility (Segway)

71. Golf Carts

72. Toy Ride-On Vehicles

Mobility Devices 73. Electric Wheelchairs

EERE-2008-BT-STD-0005 COMMENT 09