MIL-PRF-8565/1A(AS)
"d. During the 30-day storage period, charge each battery using the integral charger
(115 VAC, 400 Hz) for 1.0 ± 0.05 hour each day. At the end of the storage period, remove the
batteries from the temperature chambers and return them to laboratory ambient conditions for
16 ± 2.0 hours. Discharge the batteries at the 1.0 C-rate to a cut-off voltage of 20.0 volts.
Examine the batteries for the requirements of 3.5.11 of this specification sheet and 3.8.6 as
modified herein."
NOTES:
1. The D8565/1-2 battery supersedes the D8565/1-1 battery.
2. Add the following paragraphs:
"6.11.7 Additional application information. The following information is provided for
users of the D8565/1-2 battery.
"6.11.7.1 Initial installation date. The initial installer will write the date the battery is first
installed in an aircraft (date first placed in service) in the space provided on the battery's
identification marking (see 3.6.3 of MIL-PRF-8565 and figure 1 of this specification sheet).
6.11.7.2 Service life and removal date from aircraft. The battery's service life (useful life)
in aircraft is limited to 36 months. The battery will be removed from aircraft service 36 months
after the date it was first installed in an aircraft (see requirement 4 of this specification sheet).
"6.11.7.3 Maintenance. Users will remove the battery from the aircraft and verify the
battery's capacity and proper operation of the integral charger at 12-month intervals until the
battery is removed from service (see requirement 4 of this specification sheet).
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