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Two Batteries Connected In Parallel
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Two Batteries Connected In Parallel
Two identical batteries can be connected positive (+) to
positive (+) and negative (–) to negative (–) in a parallel
system. A parallel system doubles capacity and maintains the
voltage of a single battery. Figure 6 shows two batteries
connected in parallel.
CAUTION
Do not make a parallel connection between
batteries made by different manufacturers,
different types of batteries, or batteries that have
different Ah ratings. Decreased battery life and
improper charging will result.
Do not connect an old battery to a new one.
Figure 6 Two Batteries Connected in Parallel
FROM ALTERNATOR
OR CHARGER
DEEP-CYCLE
AUXILIARY
BATTERY
VEHICLE
STARTING
BATTERY
ISOLATOR
GROUND TO
VEHICLE
CHASSIS
TO VEHICLE
GROUND TO
VEHICLE
CHASSIS
TO DC
LOADS
FUSE OR
CIRCUIT
BREAKER
DEEP-CYCLE
AUXILIARY
BATTERY
GROUND TO
VEHICLE
CHASSIS
FUSE OR
CIRCUIT
BREAKER
PROwatt
600