TM 9-6140-200-14
5-6.3 Initial Charging.
a. The initial charging operation, fully charges batteries.
b. Full charging takes longer than top-up recharging.
5-6.4 Trickle Charging.
a. Trickle charging is a method of charging for maintaining a battery that is
already at a good state of charge.
b. Trickle charging primarily compensates the self-discharge losses suffered by
all rechargeable batteries during storage.
c. Possible types of operation and application for trickle charging in the military
sphere are as follows:
(1) Switch-over operation
(2) Mothballed vehicles
(3) Batteries which must be kept in a good state of charge for a special
operation needs.
5-7 Parallel Charging of Batteries with Constant Charging Voltage.
a. This method of charging brings several batteries up to a satisfactory state of
charge with the aid of a battery charger.
b. Sealed Lead-acid batteries can be charged in this form if they have the
following:
(1) different states of charge.
(2) different ages.
(3) different rated capacities.
5-9