Flooded Installation

u Battery covers and terminals should be kept clean, dry and free
of corrosion. Battery vent caps must be secured to the batteries
during use and charging period. Remove vent caps only to inspect
electrolyte levels or specific gravities.
u When batteries or terminals require cleaning, use only
biodegradable cleaner-neutralizer solutions that can be safely
applied and disposed of through a common sanitary sewer. Other
chemical-based solutions are often dangerous, ineffective and
cannot be disposed of in an environmentally safe manner.
u If electrolyte is spilled onto batteries or the battery compartment
area, neutralize it with a cloth moistened with a solution of baking
Connecting Multiple Batteries
Crown deep cycle batteries are available in various BCI group sizes, voltages and electrical capacities. Certain systems require
the installation and connection of multiple batteries to accommodate minimum voltage or capacity specifications to ensure
expected performance. Users and technicians should always confirm that batteries are oriented in proper position according
to battery terminal polarity – as indicated by the raised polarity mark on the battery cover. Cables and connectors should be
secured with the appropriate terminal hardware and tightened to the torque values specified by Crown Battery.
soda and water mixed in the proportion of one pound of baking soda
to one gallon of water. When the electrolyte is neutralized, wipe the
affected area with a water-moistened cloth to remove all traces of
soda.
u Inspect cable-to-terminal connections to ensure connections are
tight and free of corrosion. Battery cables must be intact with no
exposed wires.
u Preventative maintenance practices should include periodic
inspection of battery specific gravity and open circuit voltage. An
imbalance of specific gravity and open circuit voltage is usually a sign
of improper charging, service infrequency, or a bad cell condition.
Preventative Maintenance
Series-Parallel Connection:
To increase both voltage and electrical capacity, connect the
batteries in a “series-parallel connection” as shown below:
Series Connection:
To increase voltage, connect batteries in “series” as shown:
Series Connection:
Single String Series Connection of twenty-four 2 Volt batteries
Parallel Connection:
To increase electrical capacity, connect the batteries in “parallel”
as shown below:
Example:
Individual Battery Voltage = 6 Volts
Individual Battery Capacity = 250 Ah
Series Connection Voltage = 12 Volts
Series Connection Capacity = 250 Ah
Example:
Individual Battery Voltage = 2 Volts
Individual Battery Capacity = 3690 Ah
Series Connection Voltage = 48 Volts
Series Connection Capacity = 3690 Ah
Example:
Individual Battery Voltage = 12 Volts
Individual Battery Capacity = 150 Ah
Parallel Connection Voltage = 12 Volts
Parallel Connection Capacity = 300 Ah
Example:
Individual Battery Voltage = 6 Volts
Individual Battery Capacity = 250 Ah
Series-Parallel Connection Voltage = 12 Volts
Series-Parallel Connection Capacity = 500 Ah