I'm setting up a system with three 12V 280Ah batteries in parallel, and I might expand to five in the future. I'm on the hunt for a good 80 or 100 amp charger since my current VEVOR 35 amp charger takes ages—about 19 hours from 35% to full! I tried a 60 amp charger as well, but it's still pretty slow. I'm also in the process of installing two Rover 60 amp solar controllers and planning to set up 12 200-watt solar panels. I realize I will need more solar power than I have now at 12V, but the controllers are affordable at $60 each, so I might get more in the long haul. For now, I need a reliable charger because I'm limited to one extension cord to charge the batteries until I can get the solar system up and running. I also have a 4000-watt inverter that I'll be using with these batteries. Any recommendations would be super helpful! Just a note: I know I eventually need to upgrade to a 24V or 48V system, but since part of my setup was gifted, I'm making do with what I've got for now.
1 Answer
Hey there! If you’re willing to import, check out Powmr; they have a solid 100A MPPT charger that handles around 1200W at 12V for about $150. You could snag two of them and that should really do the trick. Just a heads-up though, you won’t fully charge in a single day, but Lifepo4 batteries can handle it. Might be worth considering!

Thanks for the tip! I heard about those Powmr chargers too. But there's a guy in town selling refurbished Rover 60 amps for $60 each, and he says I can use up to 8 in parallel. Since I'm new to this solar game, I'm definitely going to explore those options!