MIL-PRF-8565K
e. Electrolyte leakage or spilling of electrolyte at any time during the test. Corrosive or
liquid discharge through the battery vent tubes (see 3.5.4) shall not occur during testing to this
specification (except when testing to 4.5.18). With the battery vent ports open and the battery
operating within design requirements of this specification, cell venting shall not cause corrosive or
liquid discharge from the battery. After a venting sequence, the venting mechanism within the
battery shall automatically revert to its pre-vented configuration. Products of cell venting that are
discharged through the vent tubes shall be non-toxic.
f. Breakdown of insulation, flashover, arcing, stripping of metal plating from any component
part, corrosion of metal parts, or loosening of protective coating from the battery container or
cover.
g. Deterioration of battery identification markings.
h. Cracking, pitting, chipping, scaling, corrosion, or other deleterious effects on the external
and internal metal or component parts of each battery.
3.8 Detail requirements.
3.8.1 Condition of battery. The battery container shall not exhibit scratches, gouges, dents,
torn material, leakage, or other damage when inspected in accordance with 4.5.1 (see 6.6).
3.8.2 Visual and mechanical. Batteries shall be in accordance with 3.5, 3.6, table II, and the
applicable specification sheet when subjected to the examination of 4.5.2.
3.8.3 Dimensions and weight. The dimensions and weight of batteries shall be as shown on
the applicable specification sheet after the inspection of 4.5.3.
3.8.4 Dielectric strength and insulation resistance. The battery and its components shall
meet the requirements of 3.7 after being tested in accordance with 4.5.4. The insulation
resistance shall be not less than 1 megohm between each of the items listed in 4.5.4.a through
4.5.4.c.
3.8.5 Vent tubes. The vent tubes shall support the load without shearing, breaking, bending,
or deterioration at the point of connection with the battery or other distortion of the case after
being tested in accordance with 4.5.5 (see 4.3.4). The battery shall also meet the requirements of
3.7.
3.8.6 Capacity and electrical performance. The capacity (see 6.15.2 and 6.15.11) shall be as
shown on the applicable specification sheet. The discharge requirements and associated
parameters shall be as shown in table III (see 6.10). The battery shall produce not less than the
cutoff voltage (see 6.15.4) at the designated discharge rate (see 6.15.3) for not less than the
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