JJN 30A Solar Charge Controller 12V/24V/36V/48V Solar Panel Regulator with Adjustable LCD Display Dual USB Port Timer Setting PWM Auto Parameter

So, I have had bad experiences with solar charge controllers that said they work with 36V systems, so I wasn't expecting much. I will say I was quite surprised in the function and apparent quality of this unit. It did take a little navigating of the menu to get it properly set for a 36V flooded lead acid system, but it did work. So far it seems to being doing what it should so now only time will tell. This controller is rated for 10A, but I am using it with a maximum output of 5A so hopefully that is enough margin.

Documentation reads like something out of Google Translate; hard to understand. The controller itself seems pretty good so far...

I don't know but good produce is gone this says no store left on this I don't understand why I haven't put up all this stuff the good stuff and then they're taking it down geez they're keeping up the garbage but keeping and keep taking down the good stuff ahead and put up

I don't normally write horrible reviews. But! This thing is absolute trash. Electrician for 25 years installed thousands of inverters and chargers. First off the instructions are the worst Chinese instructions i have ever seen. They don't actually talk about any point of installation or how to program it. After 2 hours of pushing buttons i finally got the load to turn on. Another 30 minutes i unwired it shoved it back in the box and back to amazon it goes. These things are so cut and dry on how to install yet not even a seasoned electrician could figure it out. Don't waste your money on this product if you're looking for a cheap charge controller buy one cheaper even they are better. I would recommend amazon pull this completely off their website

This product works well but you need to fix it beofre installation by professional. Its not that much easy to use, quality is average.

This solar charge controller has been fantastic. It’s easy to install, highly efficient, and manages battery charging perfectly. It provides clear readings and has improved the performance of my solar setup. Highly recommend for anyone looking to optimize their solar system.

It's been hooked up for a little over a month. I have 2-24v 200watt panels in series that have a 82volt Voc, and run at 5-6 amps in full sun. This little 10 amp unit never gets hot, and does what it should. It was a perfect low cost solution for the 2 oddball panels in my array.

What you need if you want solar panels to work.