INCH-POUND
MIL-PRF-81757/9D
25 November 2013
SUPERSEDING
MIL-B-81757/9C
5 October 1984
PERFORMANCE SPECIFICATION SHEET
BATTERY, STORAGE, AIRCRAFT, NICKEL-CADMIUM,
24 VOLTS, 30 AMPERE-HOUR (BB-433A/A)
Inactive for new design after 30 July 1997.
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-81757.
REQUIREMENTS:
1. Part or identifying number. The part or identifying number (PIN) of the battery shall be
M81757/9-2 or M81757/9-3. The M81757/9-2 is not for Navy use. The M81757/9-3 is a non-
repairable, vented battery.
2. Dimensions and weight. The dimensions and weight of the battery shall be as specified in
3.10.8 as modified herein and as shown on figure 1 of MIL-PRF-81757/9. The weight of the
battery shall be not greater than 80.0 pounds (36.29 kg).
3. Capacity. The minimum capacity of the battery shall be not less than 30.0 ampere-hours
(Ah). See 3.10.14 as modified herein.
4. Interface requirements. The battery shall contain 19 cells. The cells and other interior
components of the battery shall be arranged and positioned as shown in either layout of figure 2
of MIL-PRF-81757/9.
AMSC N/A
FSC 6140
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