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Here is a typical installation of batteries and inverter/charge controller. On systems over 5000 watts, it is common to use a hybrid inverter/controller. Hybrid controllers combine charging and inverter in one box. Hybrid controllers can be 10 or 12 KW, single phase, split phase, or 220 VAC and multiple units can be connected in parallel for larger capacity.

The batteries in this image are LiFeP04. If they were Lead/acid, you would not want them in the same enclosure as any electronics that can be damaged by the acid vapors as the battery charges.

battery box

If using lead/acid batteries, the inverter can be placed in a separate weather free box.

inverter

The first set of 8 batteries are in serious need of maintenance. Trojan T-105 deep cycle are a common battery for solar installations.

Trojan T105s

This battery bank is a little cleaner. Eight 6 volt betteries. Two strings of four connected in series, in parallel. A string of 4 batteries connected in series keeps the amps at 220 ah while the voltage adds up to 24 volts. Connecting 2 strings of 4 in series keeps the volts at 24. In series you add the volts and in parallel you add the amps.

battery cox

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