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Deligreen Balancer       4s unit $140

Deligreen Balancer's transfer energy from high volt cells to low volt cells, 24 /7, whenever there is a voltage difference between cells. Multiple units are connected together in series for larger series strings. Download manual.

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3.65v charger        $32

Used as single cell charging.

Red LED - Charging

Green LED - Finished charging.

Can be left connected to battery cell permanently. Does not discharge the cell.

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Single cell balance charger example