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🛠️ Power up with precision and protection — don’t get left in the dark!
The ACEIRMC 12-pack 1S 3.7V 4A 18650 Charger PCB BMS Protection Boards deliver high-accuracy voltage control and robust multi-layer safety features, including overcharge, over-discharge, short circuit, and overcurrent protection. Designed for durability with a lifespan exceeding 50,000 hours and ultra-low standby current, these boards are ideal for a wide range of lithium-ion battery applications, ensuring efficient, safe, and long-lasting battery management.
| ASIN | B09B1VY1BY |
| Best Sellers Rank | #137,564 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #533 in Power Converters |
| Brand | ACEIRMC |
| Color | green black |
| Customer Reviews | 4.6 out of 5 stars 49 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 weeks ago
3 days ago