MIL-PRF-8565/7A (AS)
battery (see 3.5.10). The receptacle shall be equivalent to MS27466T17B6P and mounted as
shown on figure 1 of the specification sheet. It shall contain the electrical connections for the
AC power to the battery's internal heaters (see figure 2 of the specification sheet). Pin A shall be
AC positive and pin B shall be AC negative (ground)."
3.5.10 Heaters. In 3.5.10.a, insert the following after the last sentence: "Heaters shall be
powered from the battery's auxiliary receptacle pins A and B." In 3.5.10.b, delete the text and
insert the following: "Heater current shall be not greater than 3.0 amperes at 115.0 VAC. The
rated current of each heater control device shall be compatible with the heater current." In
3.5.10.h, delete "in accordance with any specified environmental condition" and insert "at 24°C".
7.3 Add the following paragraph:
"3.5.11 Mounting holes. The mounting bracket surfaces that surround each mounting hole
shall be free of any coating for a distance not less than 12.7 millimeters radius from the center of
the hole. This shall apply to both the top and bottom mounting surfaces."
7.4 Modify the following paragraphs:
3.6.5 Marking for batteries with heaters. At the end of the third sentence, insert:
"(see figure 2 of the specification sheet)."
3.8.6 Capacity and electrical performance. Delete the text and insert: "The rated capacity of
the battery shall be not less than 24.0 ampere-hours. To meet the capacity requirement, each
battery shall produce a potential of not less than 20.0 volts at not less than 60 minutes when
connected to a 24.0-ampere load after being tested in accordance with 4.5.7 at 24°C (75°F)
(24.0 Ah/1.0 hr/24°C/20.0 V at end of life). The battery's 1C-rate shall be 24.0 amperes
(see requirement 3 of the specification sheet)."
3.8.7 Constant voltage discharge. Delete the first sentence and insert: "The battery shall
produce not less than the current specified below after being tested in accordance with 4.5.8."
Temperature
Current at peak
Current
Current
Capacity at
value (Time =0)
at 15
at 30
60 seconds
seconds
seconds
Room temperature
1150 amperes
875
725
12.7
(see 4.4.1)
amperes
amperes
ampere-hours
-26.0 ± 2.0°C
725 amperes
575
400
6.6
amperes
amperes
ampere-hours
7
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