MIL-B-18F
TABLE X. Ambient storage and discharge conditions.
Normal conditions
Extreme conditions
Kind of storage
or discharge
(temperature)
(temperature)
60 °F (15.6 °C)
D storage
70 °F ±5 °F
through 65 °F
(21.1 °C ±2.8 °C)
(18.3 °C); and
75 °F (23.9 °C)
through 80 °F
(26.7 °C)
88 °F (31.1 °C)
T storage
113 °F, +2 °F/-8 °F
through 105 °F
(45 °C, +1.1 °C/
(40.6 °C); and
4.4 °C)
115 °F (46.1 °C)
through 118 °F
(47.8 °C)
65 °F (18.3 °C)
All discharges
70 °F ±2 °F
through 68 °F
(21.1 °C ±1.1 °C)
(20 °C); and
72 °F (22.2 °C)
through 80 °F
(26.7 °C)
4.7.11.3 Stabilization preceding discharge. Following storage and conditioning, when applicable, the batteries
shall be further stored for 48 hours at ambient discharge conditions specified in table X.
4.7.11.4 Discharge. Following stabilization, the batteries shall be discharged at the ambient discharge conditions
specified in table X. The discharge shall be terminated when any one of the following conditions occur:
a.
The battery voltage or the voltage of any one unit falls below the specified test end-voltage. (For batteries
requiring discharge alternately through two resistances, the voltage shall be read during the final minute of
the heavier-load period.)
b.
The battery dimensions exceed the maximum specified (see 3.1).
c.
Electrolyte leakage becomes apparent on the exterior surface of the battery (see 3.14).
d.
SLD or SLT has been reached.
4.7.12 Electrolyte leakage. Sample batteries shall be discharged as specified (see 3.1) and then stored for 15
days. Fifty percent of the batteries shall be stored in an inverted position. The storage and discharge shall be
performed at inspection conditions specified in 4.3. During the 15 day storage period, each battery shall be examined
daily for evidence of electrolyte leakage on the external surfaces of the jacket (see 3.14).
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