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EPEVER MPPT Charge Controller 20A 12v 24v Auto, Solar Panel Regulator 100V PV Negative Grounded Solar Controller fit for Gel Sealed Flooded and Lithium Battery

EPEVER 40A MPPT Solar Charge Controller 12V 24V Auto, 40 amp Negative Grounded Solar Charge Controller MPPT Max Input 100V, 520W/1040W for Lead-Acid, Lithium Batteries and Load Timer Setting