TM 43-6625-916-12
RADAR TEST SET
0009 00
OPERATION UNDER UNUSUAL CONDITIONS - Continued
BATTERY OPERATION BELOW 0 DEGREES C
Battery endurance and lifetime is degraded at cold temperatures. For best performance, store spare batteries
in a room temperature location and expose to cold temperatures only when necessary.
Never attempt to recharge a cold battery. Always allow the battery to warm to room temperature before
recharging.
NOTE
The temperature sensing circuits of the charger at room temperature will not correctly
sense the temperature of a cold battery that has just been inserted.
The Test Set internal battery charger is disabled when the Test Set is below approximately 0 C or above
approximately 40C. Therefore, supplying external DC to a cold Test Set with a battery installed is
acceptable. The internal charger will automatically start operation when the Test Set has warmed to
acceptable temperatures.
END OF WORK PACKAGE
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