MIL-PRF-8565K
3.8.13.2 Shelf life. In order to maintain qualification, successful completion of the shelf life
test of 4.5.26 shall be required. The battery shall be capable of storage in uncontrolled
temperature conditions from -40°C to +38°C (-40°F to +100°F) for not less than 18 months
without damage (see 6.2). The capacity shall be recoverable after being tested in accordance with
4.5.26. The battery shall also meet the requirements of 3.8.9 after being tested in accordance with
4.5.10.
3.8.13.3 Deep discharge recovery. The battery shall be capable of storage in the fully
discharged state (0.0 volts) (see 6.15.7) 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 4.5.27. The battery shall also meet the requirements of 3.7
during and after charge and discharge.
3.8.14 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 4.5.24.
3.8.15 Shock (crash safety). The battery shall perform as follows after being tested in
accordance with 4.5.25.
a. The battery's normal attachment points (such as brackets, flanges, or hold-down bars)
shall retain the entire battery intact in the test fixture during and after the test.
b. Mechanical bending and distortion are acceptable.
c. The battery shall also meet the requirements of 3.8.10.
3.8.16 Output performance. The battery shall produce not less than the potential specified in
the applicable specification sheet during and after each of the tests of 4.5.28.
3.8.17 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 4.5.29. The battery shall also meet the requirements of 3.7.
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