MIL-PRF-29595A
mechanical damage due to testing environments, nicks or burrs of metal parts of surfaces, nor
improper or incorrect marking.
3.5.2 Batteries. After delivery from the manufacturer, batteries shall not require the addition
of any substance before being put into service. The battery shall not require any maintenance
besides a conditioning charge, in meeting the provisions of this specification (see 6.14.8).
3.5.3 Battery container and cover. The battery container and cover shall be free of pits, blow
holes, rough spots, and other deformations. The dimensions and locations of receptacles, hold-
downs, vent tubes, and battery identification shall conform to the applicable specification sheet.
The cover shall not be removable from the container. The battery container and cover shall
neither support combustion nor emit toxic vapors when subjected to flame.
3.5.4 Venting. Each cell and battery shall incorporate a safety-venting device or be designed
and manufactured in such a manner that will preclude a violent rupture as a result of cell venting.
The design and construction shall not degrade or obstruct the vent. If a battery includes vent
tubes, the tubes shall be located as shown on the applicable specification sheet. Each vent tube
shall be capable of supporting the test sample such that the requirements of 3.9.5 are met after
being tested in accordance with 4.5.6.
3.5.5 Receptacles. Each battery shall include a main power receptacle in accordance with
the applicable specification sheet. This receptacle provides the battery's interface to the aircraft
or equipment electrical system. The hardness of the wormgear retaining pins within the sockets
of receptacles in accordance with MIL-PRF-18148/3 receptacles shall be not less than 55 on the
Rockwell C Scale when tested in accordance with 4.5.24.
3.5.6 Connectors, intercell. All electrical connections within the battery shall be by
surface-to-surface conduction and not through screw threads.
3.5.7 Leakage. Evidence of leakage of electrolyte or any other substance during the
performance of any of the tests specified in section 4 shall not occur.
3.5.8 Voltage. Unless otherwise specified in the applicable specification sheet, the nominal
potential of the battery shall be 26 volts. The battery potential shall be not greater than 29.0 volts
at any time.
3.5.9 Heaters. Heaters may be incorporated into batteries to meet the cold temperature
charging requirements. Heater power shall not be provided during any discharge performed in
section 4. Heater power shall be provided during all constant potential charges (see 4.4.2).
When heaters are incorporated, the following requirements shall apply:
a. Heaters shall be powered by 115 VAC or by 28.0 volts direct current (VDC) (see
applicable specification sheet for heater power requirements).
4
For Parts Inquires submit RFQ to Parts Hangar, Inc.
© Copyright 2015 Integrated Publishing, Inc.
A Service Disabled Veteran Owned Small Business