MPPT Solar Charge Controller 30A 12V 24V Auto Max PV 100V Solar Panels Common Negative Ground Upgraded Regulator, LED & LCD & 5 Keys for Gel Sealed Flooded Lithium User Types (XTRA3210N)

Very good controller.Till now used simpler ones, this one gave me at least 20% more Ampers.Simple configuration, bought the wifi adapter, and can see view and configure though the phone app.

good quality

This does a good job of converting solar panel power to battery power. The manual is confusing though. It has 2 controllers in it. The Lithium setting is GEL . This is because GEL does not use equalize.

I needed a quality solar charge controller I could trust out in the middle of a forest where it functions for months without being there. With the FOB WIFI added, I am able to remotely monitor the solar system.Well worth the money.

While the unit seems solid and well reviewed, It is very misleading to claim that this supports lithium and user-defined batteries. To be clear, the EPEVER MPPT Solar Charge Controller DOES NOT Support lithium batteries or user-defined battery parameters. This is VERY MISLEADING and I only hope I can save others from completely wasting their times . I have owned many charge controllers over the years and all have been adjustable directly on the unit so this is very unusual.

This XTRA 3210AN was my second Epever charge controller, which I paired with my first LiFePo battery. I had worried about the firmware update process, since I use Macs, and the software was for Windows. No sweat. I borrowed a Windows and the seller patiently guided me through every step of firmware update process. They answered each question I posed within, at most, a few hours. After I'd updated the XTRA3210, they even helped me update my previous Epever, a Tracer 4210, so that I'll be ready to replace the AGM battery it controls with a LiFePo when the time comes.

THIS IS ONE OF THE BEST MPPT CONTROLLERS IN THE MARKET. WE HAVE BEEN USING THIS UNIT FOR AN YEAR NOW AND SO FAR IT DID NOT HAVE ANY ISSUES. THE FIRST ONE WE PURCHASED WAS DEAD ON ARRIVL AND WE HAVE TO RETURN IT BUT THE SECOND TIME WE GOT IT, IT IS BEEN WORKING FLAWLESSLY

I like this unit it's one of the better ones out there ! The instruction manual I don't know what to say about that ? But it's worth it's Good deal !