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NSWC Crane. “ Harnessing the Power of Technology for the Warfighter ”. Battery Shelf-Life What Is It?. Tri-Service Power Expo Norfolk, VA 15-17 July 2003. Presenter: Marvin Wilkerson. Shelf-Life Program Objectives. Timely delivery of product to customer that meets user requirements

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Presentation Transcript
nswc crane
NSWC Crane

“Harnessing the Power of Technology for the Warfighter”

battery shelf life what is it

Battery Shelf-LifeWhat Is It?

Tri-Service Power Expo

Norfolk, VA

15-17 July 2003

Presenter: Marvin Wilkerson

shelf life program objectives

Shelf-Life ProgramObjectives

Timely delivery of product to customer that meets user requirements

Lowest Cost

Highest Reliability

battery shelf life issues
Battery Shelf-Life Issues
  • Many different battery types, chemistries, and associated characteristics
  • Variation in knowledge of battery characteristics within shelf-life community
  • Differences in understanding or interpretation of shelf-life
definitions

Definitions

Shelf-Life –Length of time a battery is required to last under storage conditions and remain capable of meeting mission requirements

Service-Life– Useful life of a battery for mission application from the time it is placed in service

Capacity– Ability of a battery to provide a sustained current for a given duration of time (Ah) until voltage reaches specified lower limit (cutoff voltage)

Operating Life– Time required for battery voltage to remain above cutoff voltage under mission loading

Self Discharge– Process in which battery discharges (loses capacity) due to internal chemical reactions without an external load applied

slide6

Operating Life

Battery Life

Service Life

Shelf Life

100

95

90

85

80

75

70

65

60

55

50

45

40

35

30

25

20

15

10

5

0

Insertion into Equipment

Capacity

Operation of Equipment

0 Time

bottom line

Bottom Line

If items are stored (regardless of whether by acquisition activity or end user), the condition of the inventory must be understood

slide8

Battery Shelf-Life

Sub-Committee

Goals

* Evaluate and enhance the life cycle process for batteries as it relates to shelf-life

* Recommend actions to resolve issues and problem identified by DoD customers

* Recommend procedural and process changes to enhance program management

* Recommend policy changes to DoD 4140.27 and other

policy documents

slide9

Battery Shelf-Life

Sub-Committee

Focus Areas

* Acquisition issues affecting shelf-life & quality

* Validate and standardize shelf-life coding in DoD

* Establish standards and procedures for disposal and returns

* Update and coordinate battery storage standards, including training at all levels

* Procedure for military unique shelf-life problems

* Battery reference material readily available to all users

slide10

Battery Shelf-Life

Sub-Committee

Focus Areas

* Standardization of batteries

* Establish and standardize testing and identify technical

centers

* Standardize marking and packaging and with commercial

practice where possible

* Standardize buying efforts between agencies

* Establish yearly joint services battery conference

dod shelf life board
DOD Shelf-Life Board

Michael Pipan, HQ DLA Program Manager

703-767-1585, DSN 427

George Barchuk, HQ USMC Marine Corps Member

703-695-8947, DSN 225

Debbie Trautman, NAVICP Navy Member

717-605-1506, DSN 430

Ken Pillar, LOGSA Tobyhanna Army Member

570-895-7685, DSN 795

Doug Shumate, WRAFB Air Force Member

478-926-4005, DSN 468

dod battery shelf life subcommittee members
DOD Battery Shelf-Life SubCommittee Members

Marvin Wilkerson, NSWC CRANE Chair Navy

812-854-6152, DSN 482

  • Ian Alexander, CECOM Army
  • Joanne Martin, HQ USMC
  • Michael Gallager, HQ USMC
  • Steve Barry, TINKER Air Force
  • John McCloud, DSCR DLA
  • Mary Ellen Carhart, DSCR DLA
  • Russell Vanallen, DSCR DLA
  • Mike Minto, DDC DLA
  • Brian Fillingim, NSWC CRANE Navy
  • Jim Wadsworth, NSWC CRANE Navy