ECO-WORTHY Solar Charge Controller Boost Mppt 12A Solar Panel Regulator 24V/36V/48V/60V/72V Lead-Acid, Lifepo4, Gel, Battery Flooded in Golf Cart, Electric Vehicles, Solar System

I have a single solar panel in the woods and I bought this because it wasn't expensive. I figured if it can put some juice in my batteries while I'm not around, then maybe it'll be worthwhile. As it turns out it is performing better than the trickle I was expecting. After being away for a month, it had replenished more than a weekends worth of battery usage. After 4 days at the cabin with standard usage (fridge, microwave, lights and coffee maker), I left with more juice in them than when I left last time. For me that will pay for itself in a year or so. I hope it lasts.

My 5th wheel has a 48v battery bank with 600ah. My inverters require at least 140v of solar for each string. These are great as I can add a smaller amount of solar while still charging the 48v batteries. I've used 3x Ecoworthy 130w solar panels and 4x Renogy 100w solar panels connected to these. They both work great. When boondocking, every watt of solar matters and having the ability to have an additional 400ish watts is nice. I currently have two of these. One I use with the 3 Ecoworthy 130w panels that I can lay on the ground. I'm not sure if I will have room on the roof to use the 2nd one. I'm hoping to trial using one of these to charge an eBike. My eBikes also use 48v batteries. I've considered building a small trailer with either three 25 watt panels or 50 watt panels or hopefully two 130w panels as the Ecoworthy 130w panels only weigh 4 pounds each. If I can use two 130w panels to charge the battery that can significantly extend the range on sunny days. The ebike battery is only 672wh which means that if two 130w panels can get about 200w of charging, the battery can be charged in about 3 hours. It may also extend the range by double, plus much more if the bike isn't being used for an hour or so before the return trip.

Very easy to hook up and adjust. I used 1 large solar panel, that produces 36 volts at 9 amps. In full sun the charger puts out 52 volts at 4.7 amps to my 48-volt lithium battery. I have the charger adjusted down to not charge any higher than 55 volts. The photo is with the battery at full charge.

Getting it set up is a bit clunky, so I wouldn't recommend it for someone non-technical. It performs well charging my "48v" lithium pack from a 320w solar array that only outputs around 30v. It keeps charging even with pretty marginal sunlight. No issues with heat so far.

Didn't work for me; it broke down after the 2nd use.