Renogy 12V 50A DC to DC Battery Charger with MPPT, On-Board Battery for Gel, AGM, Flooded and Lithium Batteries, Using Multi-Stage Charging, Solar Panel and Alternator

is currently in use with my van conversion handling my solar charging system

Won't combine solor and alternator

This is the most compact and easiest DC-to-DC charger and Solar regulator I have found. I added the BT-2 Blue tooth module and can monitor and control its functionality via my smart phone. I was an each install in my motorhome and works flawlesly.

Stoped working after a few months, triple checked all connections. I ended up taking this out of my circuit & running batteries in parallel with a manual switch. Not the point of buying this product but this way I can actually charge my batteries.

This thing works great. It does everything it says it will and it takes away the complications. My issue was finding 13 different installation instructions concerning the order of connection. I finally found the video on their website and it makes it simple. They need a qr code for easy access to installation videos. Some of us are visual learners. 4 stars for the hassle of trying to find the video. The product gets 5 all day

I have a cargo trailer that I use for work with a 2000 watt inverter to run power tool chargers & lights in the trailer. I have a 200 watt solar array connected to the solar input as well as the vehicle smart alternator input. The (2) 100 Ah AGM batteries stay charged through this device to where I never have to plug in my trailer to the house to charge my batteries. What I like about this product is if it’s cloudy and I’m using power then the vehicle will charge the batteries as I’m driving from job to job or I can start the truck for a few minutes and get a charge. This device also prevents voltage feeding back to the vehicle from my trailer batteries as it would if it were connected straight to the battery output from the truck. It also prevents overcharging of the batteries, extending the life. Lastly, the ability to change battery types on this device makes it great to use for different battery chemical types. The price is a little high but it does exactly what I need in just one device.

Not sure why this product is so unusual in the market. Having both vehicle power input AND a solar power input is very helpful to say the least! Came with some nice accessories like terminals and a nice ALN fuse holder. Hooked up easy, does what it says it does. I highly recommend getting the BT2 accessory. I could see that one of the solar panels I bought was defective. I would have not been able to detect that without it. ALSO, I can use the phone app to set a MAX charge current. That is very helpful for when I want to charge my power crate off of a car cigarette lighter socket etc. My project is intended to run a remote office while camping in remote areas. The charger fills a 100Ahr Lithium battery. Inverter is just a little 400w unit. I used a 50A Anderson connector for the vehicle power input and a 30A Power pole for the solar hook up. If I added more solar I would upgrade that. I have a power disconnect switch on the battery to isolate the system when not in use. Enjoy.

I’m using this in my Super-C toy hauler RV. Wanted to charge my batteries in the living area while driving, 2 deep cycle 100ah’s, since my RV didn’t have anything built in. Was super easy to install and get mounted up. The little manual that comes with it gives all the info you need to install. Best part is the built in MPPT solar charger. I wired in a connection for my 200w folding panel and it is amazing to not have to buy a separate controller.Would highly recommend this charger.