Multi-level safety protection: Spark proof, reverse polarity, overcharging, short-circuit, over-temperature, and dust resistance. Perfect for charging 12V lead-acid, flooded, sealed maintenance free batteries (AGM and gel cell) and 12V-Lithium(LiFePO4) up to 85Ah, Safely maintain types of motorcycle, automotive, marine, RV, Boat, ATV, powersport, lawnmower & garden etc.