TM 9-6140-200-14
(3) Check each battery cell to insure that electrolyte is at proper level.
(4) If the battery is extremely cold, allow battery to warm up before checking
liquid or adding distilled water. The liquid level in the battery will rise as
the battery temperature increases.
(5) Add distilled water as required to bring the battery liquid to the proper level.
b. Battery Charging Current. Only direct current from a controlled charging
source should be used for charging batteries. This will insure that the charging
rate of the battery is not excessive.
c. Connections for Battery Charging. Connections used for battery charging are
of two types: series, parallel or direct individual battery connections to the
charging source. The type of connection made will depend on the type of
charging system used and is described below.
(1) Parallel battery connections. These connections are used with high rate
battery charging systems. High rate chargers are usually of the constant
voltage type which require that batteries be connected in parallel. The
number of batteries that may be connected in parallel depends on the
current capacity of the charger. All batteries connected to the high rate
charger must be of the same voltage rating. The parallel connections will
have all terminals of like polarity connected- the positive (+) cable of the
charger connected to the positive connection of the batteries and the (-)
negative cable of the charger connected to the negative connection of the
batteries. Hookup and charging operations shall be in accordance with the
printed instructions of the manufacturer of the high rate battery charger.
NOTE
Battery charger may be different than the one shown.
Read battery charger instruction that is overpacked
With battery charger before connecting charger to
Batteries for charging.
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