Copyright 2013 HotSpot Energy
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Battery Configuration Overview
Always use a bus bar and ring terminals to connect the charge controller and load to the battery
bank to prevent corrosion. Terminal corrosion will cause charging problems. Never connect the
positive and negative to the same battery. Bus bars, ring terminals and grounding equipment is
provided by the installer. Here are some examples:
NOTE: The Installation of a battery bank should be done by a licensed Electrician in
accordance with the NEC, and must comply with state and local standards and codes. The
manufacturer accepts no responsibility for failure to follow the applicable standards and
codes.
It is very important that the wire you choose is large enough to carry the amount of current from
your charge sources, batteries and loads or you will experience a substantial loss of energy.
Undersized wire can lead to heat build up in the wire which could lead to failure of the wire and the
possibility of fire and/or injury.
The closer you can get your charge controller to the batteries, and the batteries to the load, the
better. The longer the cable run, the larger the wire must be in order to prevent large voltage drops
due to the resistance of the wire.
Battery Interconnect Wiring
For most battery interconnect wiring using 6 or 8 batteries, no cables should be longer than 48” and
we would recommend 8 AWG wire. For 12 or 16 batteries interconnected we recommend no cables
longer that 72” and use 6 AWG wire.
