Installation Guide

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When two or more batteries are connected in a series, their voltages add up, but the Amp-Hour
(AH) capacity remains the same.
Fig. 9.1 shows two 6V batteries in series. For example, say
each battery has 225 Ah. This wiring will form a 12V battery bank with a capacity of 225 Ah.
Notice that the cables connecting the batteries in series are of heavier gauge than the ones
coming from the controller. These cables have to be of heavier gauge because when power is
drawn from an inverter, it involves large amounts of current. This interconnection cable is often
sized according to the power of the inverter.
Battery Configurations
The battery system can also be configured to create a “bank” of batteries. In this section, we
cover the most basic configurations. When wiring batteries, extreme attention should be given.
Never short a battery, as high currents can cause severe burns or even death.
HAZARDS
It is recommended that insulated/non-conducting tools be used
when working with batteries. Never leave tools on top of the battery.
Always wear eye protection. Never touch both of the battery
terminals at the same time with your bare hands.
9.1 Series connection of batteries (12V)
Figure 9.1 Two 6V batteries connected in series