VEVOR 12V 40A DC to DC Battery Charger, 500W, On-Board Battery Charger for Lead-Acid, Lithium, AGM, Gel, and Flooded Batteries, Smart Multi-Stage Charging, for RVs, Commercial Vehicles, Boats, Yachts

What's not to love? Alternator charging my lithiums from my outboard motor...keeps them topped off. Well-made and easy to use.

Very nice and safe. Comes with internal 20A fuses to prevent damage.

0 stars. Charge current never exceeded 8 amps, LC activated only output 4 amps. Useless charger.

Easy install, seems to do the job well. Made for a much easier trip when facing long travel days that otherwise would be draining the camper house battery bank.

Keeps lithium deep cycle battery from overheating vehicle alternator.

Prods - built strong, works good also Cons - terminals for power cables too small - impossible to use standard cable terminals. Need to grind every terminal from both sides to fit then in narrow spaces. Moreover power connections should be rotated on 90 degrees because it’s difficult to connect to power terminals. Would return products and newer buy VEVOR dc to dc because it’s has terrible power terminals. I love VEVOR products, but this charger must be modified. Attached photos of example good terminals other dc charger.

Good

It wouldn't turn on at all checked all connections made sure 12 volts was going to the right places. Had to disconnect it and jump over it during my two week trip