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

It's a very nice DC battery charger, it functions great, it was easy to use easy to install, the displays easily read, it charges up with quickness, and it's a good price can't complain

It's working great. It powers my laptop and charges my phone when others failed. It doesn't draw a large amount of stand by power, so I leave it on all the time. I'm in a minivan converted to an rv with around 100ah of battery capacity

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.

I've had this hooked up in the back of my truck for a year now. It's in conjunction with a solar panel. Between the two my deep cycle has never had issues with voltage drop. It will work with regular batteries or lithium ion. Read the directions and set accordingly. 4 stars cuz I wish it had some sort of voltage display and the toggles and wire connections are small.

Very high quality as are all Vevor tools. Great documentation. Sturdy construction, perfect mounting arrangement. Be sure you understand the D+ terminal wiring, the documentation is NOT VERY CLEAR HERE!

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.

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