TM 9-6140-200-14
(2) Separate and store batteries by type, date received and date stored. Mark
the date the battery is received on the battery casing with chalk. This will
help in placing the oldest battery stored in service first.
(3) Do not stack batteries in storage for battery storage methods and
instructions (see para. 3-5).
(4) Batteries in shipping cases should be stored on elevated pallets.
(5) Remove and inspect all batteries received in broken or damaged shipping
containers. If batteries are not damaged, store in good containers. Repair
or turn-in all damaged batteries.
c. Self-Discharged of Wet-Charged Batteries. (6TL, 2HN and 4HN)
(1) All wet-charged batteries will discharge slowly in storage. These batteries
may discharge faster when fully charged than when partially charged.
Temperature has an important effect on the self-discharge of wet-charged
batteries. A warm battery will self-discharge much faster than a cold battery.
Listed below is the approximate self-discharge rate of the average, fully
charged battery, in good condition for the first 10 days of storage due to
temperature conditions:
0.0025 specific gravity/day
At 100 degrees Fahrenheit
At 80 degrees Fahrenheit
0.001 specific gravity/day
At 50 degrees Fahrenheit
0.0003 specific gravity/day
(2) To minimize the rate of self-discharge, store wet-charged batteries in as cool
place as possible. Store all batteries away from hot air ducts and radiation
heating units. Shield stored batteries from direct sunlight at all times.
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