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|  MIL-B-8565/15
"4.6.18.2 Crash hazard. The battery shall be subjected to the crash hazard test, procedure V, method
516.4 of MIL-STD-810. The test shall consist of 10 impact shocks, two in each direction along each
orthogonal axis, except that which would place the battery in an inverted position. The shock pulse shall
be in accordance with figure 516.4-4 using amplitude (a) and time duration (c). No resilient mounting shall
be provided for this test. The battery shall be inspected after each shock for any abnormalities. There shall
be no cracks in or breakage of the battery mounting attachments, and the battery assembly shall remain in
place and not create a hazard. However, mechanical bending or distortion shall be permitted, and the
battery shall not be required to meet any electrical requirements at the conclusion of the test."
4.6.21 Temperature rise and float. Delete "18.0 volts" and substitute "20.0 volts".
4.6.23 Vibration. Delete and substitute the following: "The battery shall be subjected to the random
vibration test for equipment installed in jet aircraft, category 5, procedure I, method 514.4 of MIL-STD-
810. The battery shall be vibrated along each orthogonal axis using the vibration spectrum per figure
514.4-8 of MIL-STD-810, with Wo equal to 0.07 g2/Hz. Test time per axis shall be 1 hour. The battery
shall be charged in accordance with paragraph 4.5.1.3 during vibration and shall be discharged at the 6.5C
rate for 1 minute prior to beginning each axis. The cables connected to the battery shall consist of four size
AN-6 cables (two connected to the positive terminal and two connected to the negative terminal) and shall
be clamped to the test apparatus at a length of 46 3 centimeters from the battery. The battery shall be
examined for physical damage resulting from the vibration exposure and shall meet the requirements of
paragraph 3.6.16."
4.6.26 Ground storage. Delete "18.0 volts" and substitute "20.0 volts".
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