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TM 11-5820-890-20-2
7-1
CHAPTER 7
BATTERIES
Subject
Para
Page
Care and Handling of Batteries
7.1
7-1
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Battery Data
7.2
7-2
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Battery Testing
7.3
7-4
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7.1.
CARE AND HANDLING OF BATTERIES.
a.
General. The vehicular and manpack radio or dismounted RCU, all use hold up battery (BA-5372/U).
The manpack radio or dismounted RCU also use the BA-5590/U as a primary battery.
b.
BA-5372/U. This battery is used to retain data stored in memory when primary power is lost or when
changing the primary batteryin manpack configuration.
c.
BA-5590/U. This battery is used as a primary power source in manpack or dismounted RCU because
of its high power density. Certain precaustions must be followed when using this battery.
WARNING
A lithium sulfur dioxide (LI SO ) battery used to power the Manpack RT & RCU contains
pressurized sulfur dioxide (SO ) gas. The gas is TOXIC, and the battery MUST NOT be abused in
any way which may cause the battery to rupture. Strictly follow these precautions to prevent injury
to personnel:
DO NOT heat, short circuit, puncture, mutilate, open or disassemble battery.
DO NOT USE any battery which shows signs of damage. These signs are swelling, disfigurement,
leaking or swollen plastic wrap.
DO NOT test lithium batteries for capacity, unless using an approved tester and are authorized.
DO NOT recharge lithium batteries.
If the battery compartment becomes HOT to the touch, if you hear a hissing sound (i.e., battery
venting), or if you smell irritating sulfur dioxide gas, IMMEDIATELY TURN OFF the equipment.
evacuate the equipment and/or personnel to a well ventilated area.
DO NOT use a HALON type fire extinguisher on a lithium battery fire.
DO NOT bypass the internal fuse or replace the fuse with a fuse of a different rating.
In the event of a fire near a lithium battery(ies), rapid cooling of the battery(ies) is important. Use a
carbon dioxide (CO ) extinguisher.
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