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Hi! I successfully mounted my off grid system with 18v panels (connected in parallel) using the Epever Tracer4210AN and connecting to a 12v Li-On battery. When I built the off-grid system I thought I would have to match the voltage of the panels with the voltage of the battery, I need to...

Hi! I recently just bought one solar charge controler in Aliexpress for a new off-grid circuit. In the description of the article it mentions it is for lithium batteries but when arrived I checked the manual and it says "only suitable for led acid batteries: OPEN, AGM, GEL". I've contacted the...