I'm trying to find a regulator for my 800W solar panel setup that can output 14.6V at 50 amps specifically for charging my LiFePO4 batteries. I've looked through numerous options, but most regulators seem to cater to 13.8V AGM deep cycle batteries instead. Does anyone know of a suitable regulator or buck converter that can handle my requirements? Looking for something feasible for occasional use. Appreciate any suggestions!
5 Answers
Victron also has Bluetooth smart MPPT controllers which can let you program the LiFePO4 charging profile. It's a handy feature if you want precise control over charging.
Consider wiring your batteries in series for 24V or 48V. It could save you some money on wiring costs and the MPPT controller you'll need.
You should definitely consider using an MPPT (Maximum Power Point Tracking) controller. It's designed to optimize the power output from your solar panels and works best for systems with batteries like yours.
Most charge controllers can switch between different battery chemistries like flooded, gel, or lithium, each with tailored charging profiles. Just remember, MPPT tech is generally better than PWM for solar setups!
Check out the Victron MPPT charge controllers. I've got a Victron 100/50 which works perfectly with my setup of two 440W bifacial panels connected to a LiFePO4 battery. It's reliable and outputs what you need!

You might find cheaper options compared to Victron, but just remember that MPPT controllers are worth the investment for their efficiency. Make sure it matches the panel voltage and current output you're expecting!