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12V/24V Automatic Detection: It is equipped with an automatic system for voltage recognition and can automatically identify system voltage once connected.
Lithium Battery Activation: Switch on the "lithium mode" and connect your battery and solar panel. It will work its magic and the battery will spring back to life.
kevartian
Reviewed in the United States on March 10, 2025
It's a mediocre charge controller that has the most impractical terminal hookups.
Brian Wilde
Reviewed in Canada on September 1, 2024
I've methodically gone through all the suggested steps (that I can find searching online) to get this controller working properly but have not been able to. When I bypass it and put my panels directly into my Bluetti EB3A instead of any of my batteries, I get the normal amount of wattage one would expect from the panels.Zero customer service from Atem.
MotorMan
Reviewed in Canada on July 27, 2024
mppt! yup awesome so far...quick outdoor and extensive indoor tested with all connected before an off-grid excursion, but so far so good. Had to grind down some o-ring cables to make them fit, but otherwise okay. If using heavier gauge wires to reduce voltage/power loses(like me) beware that you will need to figure out how to fit your terminals connections to this controller as screw and width sizes become a major issue.
Michel Perreault
Reviewed in Canada on June 29, 2024
Simples et intuitive..bien.
Phil Selwood
Reviewed in Australia on December 24, 2024
Installed to regulate solar blanket for camping. Seems to work well and very happy.
Rick Perry
Reviewed in Canada on November 16, 2024
My only complaint is that it doesn't have an indicator that it is working like the display screen on some cheaper brands. Other than that, seems pretty straightforward and seems to work fine.
Jd
Reviewed in the United States on October 30, 2024
Used this to control voltage for my excavator
Odd Job Vikings
Reviewed in Canada on April 6, 2024
The media could not be loaded.
Carm
Reviewed in Canada on December 28, 2023
Bought this one for 70 bucks instead of a 30 dollar one because it did not have a full led display. Thinking it wouldn't use power when it's night. It uses power. Not a smart controller. Once sun completely sets, this stays lit up with battery type and amount. Unfortunately. Thus using power when none is being made.Screw terminals are very small. Yellow jackets fit the wires, yet the screw terminals only big enough for blue, so bare wire was only other option. Not happy I paid 50 dollars more than the other ones just to end up with a power hungry, tiny terminal Christmas Tree
Customer
Reviewed in the United States on November 4, 2023
Works as described. Keeps my solar panels charging my LiFePO4 batteries for my Yaesu FT-818 at an appropriate voltage and current while operating the transceiver portable. While I haven't tested the USB power ports yet, I am very pleased with this purchase after using it for about half a month.
Ursula B.
Reviewed in the United States on October 30, 2023
This unit does everything it was advertised to do. Both of them are working perfectly.
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