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🛠️ Power up with precision and protection — don’t let your batteries settle for less!
The ACEIRMC 12pcs 1S 3.7V 4A 18650 Charger PCB BMS Protection Board is a high-accuracy, durable battery management system designed for single-cell lithium-ion batteries. Featuring a robust 4-layer protection system against overcharge, over-discharge, short circuit, and overcurrent, it ensures safe and efficient charging with a low standby current. Ideal for a wide range of applications including solar lighting, backup power, and portable electronics, this pack of 12 boards offers reliable performance with an effective lifespan exceeding 50,000 hours.
| ASIN | B09B1VY1BY |
| Best Sellers Rank | #100,120 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #386 in Power Converters |
| Brand | ACEIRMC |
| Color | green black |
| Customer Reviews | 4.7 out of 5 stars 48 Reviews |
| Input Voltage | 3.7 volts |
| Manufacturer | ACEIRMC |
| Model Number | 4fba7e28-a726-4f73-9e65-03b31eec2a50 |
| Number of Items | 12 |
| 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
A**R
Excellent product
Over and under voltage protection work as advertised. Works continuously at 3A no issues. Good value product.
Trustpilot
2 months ago
1 month ago