MPPT Solar Charge Controller 40A 12V/24V Auto Solar Panel Intelligent Regulator with Dual USB Port LCD Display for Lead acid Batteries

comes well packaged, works as advertised. I bought it for a amateur radio go-box to hook up a solar panel to chargemy battery. it works great and the installation was a breeze. Definitely worth the price.

Nice easy to see the function.

This 100a version works great and you must do your research before buying any of these items to prevent premature failure and possible fires. I consult for remote solar powered systems on a budget. One thing to note is writing down how many amps you need from this controller as it will output 12V or 24V depending on your setup. I recommend 24VDC battery setups on this, 24VDC inverters, and it will then need solar panels that supply 24V+ to this controller. Its good to read all the instruction booklets for parts to see what its hookup requirements are and its min/max settings needed.

This controller is not capable of controlling the voltage or the current that it claims. I installed this on a fifth-wheeler and in a week it had the batteries up to 16.5 volts. Thier own literature said it would shut off the solar panel at 14.7 volts. I don't yet know if it has ruined my flooded lead acid deep cycle batteries.

These units are good for 30 amp systems. They do not have the capacity for higher amperage. Input/Output Terminals are not good for wire sizes above 10 awg, maybe 8 awg. Regardless of nameplate or box marking... *Above 30 amps and you risk a fire🔥 .

It works perfect

I have two JACKERY solar panels and I needed a controller to set them up. I chose this one for it's amperage range and because it was ment to be used with acid batteries. took about an hour to install and began putting out all specified information. So far so good.

Fits our needs replacing old control box just wish it explained things alittle better, not all of us are tech savy