I bought this charge controller for an off-grid solar system, to charge Lithium Iron Phosphate batteries. I found the settings not quite as precisely adjustable as I wanted for this battery chemistry. The controller is solid, with sizable lugs that easily accepted my 4 gauge battery tray cables. Setting it up was not too complicated, though I did have to search a couple times through the menu to find exactly the settings I wanted, and google was my friend on that count, as the instructions are less than overwhelming, lacking detailed information. The display was decent, and relatively easy to read. I did end up returning this cc though. The reason I eventually returned this cc was the fan noise. Whenever the output charging power exceeded 15 amps on a 12v system, the fan came on, even if the unit itself was not hot. The system is installed inside my tiny home yurt, and when the fan kicked on, it was not only annoying, but hearing tv, or other audio was challenging. The fan would turn on above the 15 amp threshold, then off again when clouds came along. A charge controller should be seen and not heard. It was very distracting. I suppose this would be a fine CC for Lead acid, or AGM batteries, as long as it was installed in a non-residential location, but the slightly lacking adjustments, and the fan noise was just a deal breaker. I wound up spending twice as much for a much better unit without a fan, and voltage adjustments in the hundredths of a volt range. My chosen replacement was the Victron 150v/100amp SmartSolar, and it hardly gets warm running 55 amps through it, and it has no fan.

Installed but it took a while. If you are good at deciphering diagrams you should be ok. I do better with diagrams and written instructions. It would be nice if the parameters for a particular battery type would be set automatically. Finally got sun to test. Watts in was good. Watts going to battery was terrible. Got advice on settings but still not working.

Esta trabajando muy bien 👠cumple con las especificaciones.

I am impressed with products from this company and this controller is no exception. It's ready to go right out of the box, but if you want ultimate control, it has plenty of user settings.

Setup was easy and straight forward. I had to hunt for the password in the manual, I wish that was a little easier or if they just did away with a password but not a huge deal. Fan is loud, but also not a huge deal. I have two concerns I will update when I get more info.

Concern 1: I have the maximum voltage cut off (running a 200ah lifepo) at 13.8V, conservative, and also factory setting when put in "lithium" mode. When I measure actual battery voltage with my fluke meter, the actual cut off is 13.9. I have since bumped it down to 13.7, so the internal meter is off by .1V, which honestly isn't a huge deal, but annoying.

Concern 2: As said, I have maximum charge voltage set to 13.7V, however, when my battery hits cut off voltage, the controller is still dumping .5- .65A into the battery (8w or so) into the battery according to its screen. It does NOT seem like it has a hard shut off or go into stand by or wait to cycle. There is no way to set a "stop voltage" and then a "restart voltage" on this device, only a max charge voltage cut off. I am going to use an amp clamp to measure the actual output and repot back, but this concerns me that the devise is "trickle charging" my lifepo battery which does not require, and frankly, should not be, trickle charged or maintained. I have contacted to company for an explanation, but if the amp meter truely shows a small amount of output, I will likely return this and get a controller that actually stops charging when I ask it to.