MIL-PRF-8565/1A(AS)
when fully charged initially. The circuit shall fully charge the battery from any state of
discharge in not greater than 12 hours under conditions specified in table II of this specification
sheet, after being tested in accordance with 4.5.28.4 as specified herein:"
6.4 Modify the following MIL-PRF-8565 paragraphs:
3.8.6 Capacity and electrical performance. Delete the first three sentences and insert: "The
rated capacity of the battery shall be not less than 1.5 Ah (see requirement 3 of this specification
sheet). 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 1.5-ampere load after being tested in
accordance with 4.5.7, as modified herein, at 21 °C (70 °F) (1.5 Ah/1.0 hr/21 °C/20.0 V at end of
life). The battery's 1.0 C-rate shall be 1.5 amperes."
3.8.9 Cycling. Delete the text and insert: "Batteries shall successfully complete not less
than 100 cycles (see 6.15.5 of MIL-PRF-8565) after being tested in accordance with 4.5.10 as
modified herein (see requirement 4 of this specification sheet). The battery shall produce a
potential of not less than 18.0 volts at the end of each discharge period."
3.8.10 Functional discharge. Delete "4.5.14" from the text.
3.8.16 Output performance. Delete the text and insert: "The battery shall perform as
follows after being tested in accordance with 4.5.28 as modified herein."
6.5 Add the following paragraphs:
"3.8.16.1 Battery discharge and charging performance at temperature extremes. The battery
potential shall be not less than 18.0 volts at not less than 55 minutes into the discharge of
step 4.5.28.2.b as specified herein. The battery potential shall be not less than 18.0 volts at not
less than 60 minutes into the discharge of step 4.5.28.2.d as specified herein.
"3.8.16.2 Step discharge. The battery potential shall be not less than that shown in
table III of this specification sheet.
6.6 Modify the following MIL-PRF-8565 table:
Table III, Capacity performance requirements, requirement number (1). Delete "18.0 volts"
and insert "20.0 volts".
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