DIY Manual

35 | P a g e 10-543-1 REV A
DIY Manual
WIRING THE BATTERY BANK
Batteries can be wired in series, parallel, or both, depending on the desired bank’s nominal
voltage and the voltage of each individual battery.
The battery-based inverter determines the gauge of wire to use to interconnect the batteries into
a bank. For example, if you have a 4800W inverter in 24V that draws at max power 200A, the
proper gauge wire to safely carry 200A (4800w / 24v) is #2/0 AWG (Ampacity charts show this
200A application can be up to 25’, but ideally keep the inverter cables to 10’ or less). Therefore,
use #2/0 AWG cable between the inverter and the primary posts, and use #2/0 AWG to
interconnect the batteries together to create the bank. Ensure the wire lengths are the same for
balanced resistance amongst the batteries and the strings.
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+
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+
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Charge
Controller
Batt + Batt -
Batt + Batt -
Inverter
Figure 6
Doubling the amps without changing the wire size increases
the amount of heat by FOUR times!!