This charger is genuine and the reason why it weighs 13.1LB is that it is made of pure copper wire inside, making it durable and powerful. It can charge all lead-acid batteries, including but not limited to: AGM, GEL, Wet/Flooded, EFB, Calcium, MF, and deep-cycle batteries. Note: It cannot charge lithium batteries and lithium iron phosphate batteries.

Features:

Pacakge Includes: 

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