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A simple off-grid energy storage solution

 

A simple off-grid energy storage solution

The 12V battery pack made of 4x 200AH Winston cells. The management is done with the SBM board. The SBM board operates a 200Amp DC contactor (not visible on the photo). The contactor works as the safety disconnector in case the battery voltage would become too low.

The DC/AC inverter is a standard 12V to 230V product sold by a variety of suppliers. In normal operation the DC/AC inverter will disconnect at 11.00V voltage level, so the SBM module is only as a safety backup for protection of the cells.

This drawing shows the DC contactor installation.

Check more about the SBM boards here at EV-POWER.EU
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