MIL-PRF-8565/15A
3.8.6 Capacity and electrical performance. Delete the entire text and insert: "The rated
capacity of the battery shall not be less than 35 ampere-hours, based on its ability to conform to
the life test final discharge. The battery shall produce not less than 20.0 volts at the C-rate for
not less than 60 minutes at 24°C (35.0 Ah/1 Hr/24°C/20.0 V) after being tested in accordance
with 4.5.7, as modified by MIL-PRF-8565/15. The discharge requirements and associated
parameters shall be as shown in table III (see 6.10). Both table III and 6.10 are in
MIL-PRF-8565. Battery capacity shall vary not greater than ± 5 percent within a given
inspection lot. The tolerance of the discharge current shall be ± 1 percent of the specified value.
3.8.7 Constant voltage discharge. Delete the first sentence and insert: "The battery shall
comply with the following requirements during the 14.0-volt constant voltage discharge:
Requirement
24°C
-26°C
a. Minimum Current at Peak Value
1300 amperes
800 amperes
(Time = 0+)
b. Minimum Current after 15 seconds
1000 amperes
450 amperes
c. Minimum Capacity delivered after 60 seconds 13.67 ampere-hours 5.93 ampere-hours
Inability to deliver the specified minimum discharge current and capacity shall constitute a test
failure."
3.8.9 Cycling. In the first sentence, delete "100 cycles" and substitute "135 cycles".
3.8.13.3 Deep discharge recovery. Delete the second sentence and insert: "After such
storage, the battery shall deliver not less than 35 ampere-hours after being tested in accordance
with 4.5.27 of MIL-PRF-8565."
4.4.2 Constant potential charging method. Delete MIL-PRF-8565 paragraph in its entirety
and substitute the following: "Unless otherwise specified, the battery shall be charged at a
constant potential of 28.5 ± 0.1 volts for 4.0 ± 0.1 hours with a power source having a current
limit of 25 ± 1 amperes."
4.5.10 Cycling test. In the second sentence, delete "100 cycles" and substitute "135 cycles".
In the third sentence, delete "2.0-hour" and substitute "4.0-hour".
3
For Parts Inquires submit RFQ to Parts Hangar, Inc.
© Copyright 2015 Integrated Publishing, Inc.
A Service Disabled Veteran Owned Small Business