METRIC
MIL-PRF-8565/15A
14 July 2009
SUPERSEDING
MIL-B-8565/15
7 October 1994
PERFORMANCE SPECIFICATION SHEET
BATTERY, STORAGE, AIRCRAFT, MEDIUM-RATE, TYPE 1,
MAINTENANCE-FREE, 24-VOLT, 35-AMPERE-HOUR
Reactivated after 14 July 2009 and may be used for new and
existing designs and acquisitions.
This specification is approved for use by all Departments and Agencies of the
Department of Defense.
The requirements for acquiring the product described herein shall consist of this specification
sheet and MIL-PRF-8565.
REQUIREMENTS:
1. Part or identifying number. The part or identifying number (PIN) of the batteries covered by
this specification sheet shall be D8565/15-1.
2. Dimensions and weight. The dimensions of the battery shall be as shown on figure 1. The
weight of the battery shall be not greater than 40.82 kilograms (90.0 pounds) (see 3.8.3 and 4.5.3
of MIL-PRF-8565).
3. Capacity. The rated capacity of the battery shall be not less than 35 ampere-hours (Ah), based
on its ability to conform to the life test final discharge (35.0 Ah/1 Hr/24°C/20.0 V). See 3.8.6, as
modified by MIL-PRF-8565/15, and 4.5.7 and 6.10 of MIL-PRF-8565.
4. Service life. The battery's service life (useful life) in aircraft shall be not less than 4 years.
5. Qualification inspection and conformance inspection. Table I lists the required inspections.
6. MIL-PRF-8565 variance. The battery shall comply with MIL-PRF-8565 except as follows.
AMSC N/A
FSC 6140
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