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Lithium battery: 3.6V-16.8V (1-4 String )
When input voltage 22-28V(≤20w,≤2A), access lithium battery: 4S
When input voltage 18-22V(≤18w,≤2A), access lithium battery: 3S
When input voltage 10-14V(≤15w,≤2A), access lithium battery: 2S
When input voltage 5-7V(≤12w,≤2A), access lithium battery: 1S
LiFePO4 battery: 3.2V-12.8V (1-4 String )
When input voltage 18-22V(≤20w,≤2A), 4S
When input voltage 12-14V(≤18w,≤2A), 3S
When input voltage 9-12V(≤15w,≤2A), 2S
When input voltage 4.5-7V(≤12w,≤2A), 1S
LED lights requirements:
4S can not exceed 12w
3S can not exceed 9w
2S can not exceed 5w
1S can not exceed 3w
Note：
The board stable working output current: ≤ 600mA
Anti-reverse charging prevents over-charge and over-discharge protection. Batteries need to be protected.
The control board needs to pay attention to waterproof and insulation
The LED lamp can't use boost drive
The controller battery voltage is the output voltage, unlimited current limit voltage
The LED lamp beads can not be used directly and need to be driven by a step-down drive or a series current limiting resistor
The LED lamp beads can not be used step up driver
If you need to close at night or transport storage,the switch interface SW has been reserved, and the opening can be installed by cutting
We highly appreciate all customers opinions to improve the selling, also if anything you unsatisfied, please contact us for probable best solution.
Package Includes: 3pcs
Shannon Lowder
2025-08-10 11:41:57
I'm excited to share my experience with the 3Pcs Solar Charge Controller Board for DIY solar energy projects. I was able to create awesome solar-powered Halloween decorations in no time with these. They are super convenient and easy to use. All you have to do is connect the solar panel, the battery, and the load to the board, and it will take care of the rest. It will regulate the voltage and current automatically, so you don't have to worry about anything. I think these are perfect for anyone who wants to play with solar power or make some fun and eco-friendly crafts.
Bill in Arizona
2025-08-01 11:40:10
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Customer
2025-07-09 21:42:23
They do what you're supposed to
Paul M
2025-05-25 17:51:51
This product works as described but doesn’t have battery over discharge protection. You’ll need to use protected batteries or add a protection circuit to your build.
Left Coast
2025-03-31 13:19:45
Work fine but I tried to put a 2.54mm (standard pitch) connector in the holes and the spacing is too narrow. Why doesn't it allow regular headers to be soldered in?
Craig
2025-03-28 17:00:18
I had a fancy solar light with the controller integrated into the light board...It failed, so I bypassed the controller and hooked this up inline to handle the charging and auto on/off function... They are working perfectly for months now. I will say they have a little more variance as to when they turn on and off but that is partially due to the solar panels volts out and partially due to the chips just being less sensitive probably... Anyway I used two of them, didn't test the third, both turn on within about five minutes of each other and work flawlessly.
T. Burke in VT
2025-01-27 17:18:18
Did not work as described. 2 did boards were DOAWould have been a simple replacement but not with this board.
Pete
2025-01-21 15:56:50
These PC boards are the best! They work great! Easy to solder. Easy to read where all wires go! If you want to add an on/off switch. All you have to do is score the board at the switch area and you have your switch working. Or leave it along and let the board do it automatically. You won't be dissapointed. I fixed two of my wife's garden solar lights. Instead of the coin batteries, I upgraded to AA. Last all night and nice and bright!
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