MIL-PRF-29595A
b. Whether or not protective circuitry is used, the battery shall be capable of storage at 0.0
volts (see 6.14.5) in uncontrolled temperature conditions from -40 C to +50 C (-40 F to
+122 F) for not less than 168 2 hours without damage. After such storage, the battery shall
deliver not less than the capacity specified by the applicable specification sheet after being tested
in accordance with 4.5.20. The battery shall also meet the requirements of 3.8.1 during and after
charge and discharge.
3.9.21 Impact resistance (nonmetallic battery container only). The nonmetallic battery
container shall not crack on the inside opposite the point of impact after being tested in
accordance with 4.5.19.
3.9.22 Output performance. The battery shall produce not less than the potential specified in
the applicable specification sheet during the test of 4.5.21.
3.9.23 Discharge and charge at 71° C. The battery shall produce not less than the potential
specified in the applicable specification sheet during the test of 4.5.22. When being discharged
in accordance with 4.5.22.f, the battery shall show not less than 75 percent of its nominal rated
capacity. The battery shall also meet the requirements of 3.8.1.
3.9.24 Cold and hot temperature charge. The battery shall produce not less than the capacity
and potential specified in the applicable specification sheet after being discharged in accordance
with 4.5.23. The battery shall also meet the requirements of 3.8.1.
3.9.25 Vibration. During the random vibration tests of 4.5.26, the fluctuation of the cell or
battery voltage shall be not greater than 1.5 volts of the load voltage and shall not fall below the
minimum closed circuit voltage specified in the applicable specification sheet. Also, the
fluctuation of the cell or battery output current shall be not greater than 10 percent of the load
current.
3.9.26 Transient drop test. Samples tested in accordance with 4.5.27 shall not show:
a. Explosion, flame, fire, venting of solid material, disassembly, cell leakage, or rupture
of cell or battery within 24 hours after the completion of the test.
b. The cell or battery shall not produce shrapnel within 24 hours after the completion of
the test.
c. Liquid leakage or spilling of liquid at any time during the test. Liquid discharge
visible from outside the battery or detectable within the battery shall not occur during testing.
3.9.27 Shock (crash safety). The battery shall perform as follows after being tested in
accordance with 4.5.29.
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