MIL-PRF-8565/6B(AS)
4.5.6 Electrical test preparation. In the first sentence, change "18.0 volts" to "20.0
volts."
4.5.7 Capacity discharge. Delete the first two sentences and insert: "Perform the test of
4.5.32. Examine the battery for the requirements of 3.8.18. Stabilize the battery at room
temperature (see 4.4.1). Discharge the battery at the 1.0 C-rate to a cutoff voltage (see 6.15.4) of
20.0 volts."
4.5.10 Cycling test. Delete the text and insert: "Perform the test of 4.5.32. Examine the
battery for the requirements of 3.8.18. Constant potential charge the battery in accordance with
4.4.2 at room temperature (see 4.4.1). Subject the battery to 85 cycles of discharge and charge
under the ambient conditions of 4.4.1. Each cycle shall consist of a 2.0-minute, 15-ampere
discharge, followed immediately by a 118-minute constant potential charge in accordance with
4.4.2, followed by a 1.0-hour rest period. Examine the battery for the requirements of 3.8.9."
4.5.11 Capacity discharge at 49° C (120° F). Insert before the first sentence: "Perform
the test of 4.5.32. Examine the battery for the requirements of 3.8.18." In the next to the last
sentence, change "18.0 volts" to "20.0 volts."
4.5.17 Temperature rise and float test. In step 4.5.17.a, insert before the first sentence:
"Perform the test of 4.5.32. Examine the battery for the requirements of 3.8.18." In the second
sentence of step 4.5.17.e, change "18.0 volts" to "20.0 volts."
4.5.19 Vibration test. Delete steps 4.5.19.a, 4.5.19.d, and 4.5.19.e. Insert the following:
"a. Perform the test of 4.5.32. Examine the battery for the requirements of 3.8.18."
"d. Energize the battery heaters during vibration. Vibrate the battery along each
orthogonal axis (in the axis order shown on figure 3 of the general specification) in accordance
with the test levels of figure 3 of the specification sheet. Perform two 15-minute logarithmic
sweeps from 5-500-5 hertz. Perform one 5-minute logarithmic sweep from 20-30-20 hertz.
Perform a resonance search from 5-500 hertz. Perform resonance dwell testing for 1.5 minutes
at each resonance to a maximum of three most severe exhibiting a transmissibility of two or
greater. Vibrate the battery for a period of 20 minutes per axis in accordance with level 1 of
figure 4 of the specification sheet. Vibrate the battery for a period of 5 minutes per axis level 2
of figure 4 of the specification sheet."
"e. Constant potential charge the battery in accordance with 4.4.2 at 28.25 ±0.25 volts
during vibration. Discharge the battery at 15.0 amperes for 1.0 minute before beginning each
axis."
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