OOYCYOO MPPT Charge Controller 80 amp 12V/24V Auto, 80A Solar Panel Charge Regulator with Blacklight LCD Display Max 100V for Lead-Acid Sealed Gel AGM Flooded Lithium Battery

Works very well.

I had to return 2 other controllers because they refused to send amps to my LiFePO4 batteries. Great if you need a charge blocker. The oocycoo was cheaper and had a higher amp rating and it actually works. Amazon might blacklist me if I had to return a third one. Connecting was easy. You only input one parameter if you don't use the load. Don't be bummed by the tiny print 3 by 3 inch manual because you only need it for one thing. If it lasts as well as it started my 5 star rating will be completely justified.EDIT Tested in full sun. Only 18 amps. MPPT controllers are supposed to significantly better. Is this just hype?? Connected 20 year old obsolete Xantex designed for lead-acid batteries under the same conditions. It produced 25 amps. I will return my third MPPT. Keep Xantex until it dies from old age. Get more amps with more panels.

It’s ok..when it works. I use it on my off grid property and it’s not reliable at all.

This controller has everything going for it. I especially like the Temperature Sensor and the USB port. Will buy another in the near future.

The controller worked "fine" for 3 months, but then I had to go back to using my pwm controller. The OOYCYOO controller overheated the batteries and two of them could no longer function.