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🛠️ Power up smart, protect smarter — never miss a charge!
The ACEIRMC 12pcs 1S 3.7V 4A 18650 Charger PCB BMS Protection Board is a high-precision, durable battery management system designed for single-cell lithium-ion batteries. It features multi-layer safety protections including overcharge, over-discharge, short circuit, and overcurrent safeguards, ensuring optimal battery health. With low standby current and compatibility across various 3.7V battery applications, this board delivers reliable, long-lasting performance for professional-grade power solutions.
| ASIN | B09B1VY1BY |
| Best Sellers Rank | #136,135 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #557 in Power Converters |
| Brand | ACEIRMC |
| Color | green black |
| Customer Reviews | 4.8 out of 5 stars 47 Reviews |
| Input Voltage | 3.7 volts |
| Manufacturer | ACEIRMC |
| Model Number | 4fba7e28-a726-4f73-9e65-03b31eec2a50 |
| Output Voltage | 4.2 volts |
| Plug Format | Type B |
| Plug Type | Type B |
| UPC | 701715479210 |
| Unit Count | 12 Count |
| Warranty Description | 1 |
S**D
Works as intended, but no overcurrent protection
Keep in mind these are to protect from over or under charging, but do not have overcurrent protection. I burned a couple out this way, that was my fault.
J**I
First-rate, Effective, Inexpensive
Super little boards. Grab your nickel strip spot welder and get to work!
A**N
Does the job well if a bit different than advertised
I'm using these on single 18650 cell lower powered solar project and they're been working great. I do notice it seems to cut them off more at 4.1v but that's perfectly fine with me. As others have noted there is no discharge protection as you have to pull your power right off the same pads as the battery. My panels are a bit oversized for the power I draw anyway so this hasn't been a problem most of the time. One unit has an esp32 though and it pulled it down to 1v in no time. Lesson learned but these definitely still have a place as cheap charging protection.
B**Y
It worked as expected.-
It worked as expected.-
T**N
Work great!
Bring safety to the next level!
R**S
So far OK, B+ B- and P+ and P-
So far OK, B+ B- and P+ and P- what looks like an R- is probably a B- as well?
D**E
Maintain batteries while charging
It’s nice to have these boards so I can maintain the batteries to there max level. Recommend these to all who build boards for them selfs. I recommend these boards for maintaining the batteries
J**H
Works but no low voltage protection for discharge
Does what it claims controls charging into the cell and it allows higher charge amperage than most modules. It was my fault for not paying attention to the fact that is has no solder pads for the load which means you connect the load direct to battery which means there is no protection for over discharge or too rapid of discharge. I added a fuse to handle the too rapid of discharge.
Trustpilot
2 weeks ago
1 month ago