Renogy 12V 20A DC to DC On-Board Battery Charger for Flooded, Gel, AGM, and Lithium, Using Multi-Stage Charging in RVs, Commercial Vehicles, Boats, Yachts, 20A

from Jimbo

My deep cycle batteries were not charging to full capacity while towing the trailer so I added this to boost the voltage going into the trailer's deep cycle batteries. I also installed a battery switch and wired the Renogy so that it can charge the trailer batteries while driving or while campin...

from kilowati

I really like this charger. Easily charges my house battery and isolates my starter battery. My only complaint is while it's nominally a 20A charger, mine routinely draws 30A. I installed the recommended 30A fuses, but I kept blowing them so I've had to replace with larger. Not a big deal, and th...

from TWH

Simple installation, except running cable from truck battery to truck bed. Started my truck, saw 40 amp charge via Victron 712 battery monitor. 30 minutes later the batteries were charged. More dependable than solar and far less expensive. If you don't boondock much but travel a lot, this is an i...

from

Seems to be working great. I use a toggle switch instead of connecting it to the ignition power so I can switch on this charger whenever I want. Be prepared to spend a whole day to install properly. You will need: battery cables, terminal lugs, wire conduit, grommets, zip ties, 50A/60A in-line br...

from israel

Just a little hard to install, great product, I will recommend to anybody