







⚡ Protect your power, charge your potential!
The Create idea 2Pcs 4S 40A Li-ion Cell Protection Board is a compact, high-precision BMS designed for lithium-ion batteries (18650, 26650, polymer) with 3.6V/3.7V nominal voltage. It supports up to 40A current and 135W power, ideal for electric drills, featuring advanced voltage detection and durable build quality for reliable battery safety and longevity.


| Brand Name | Create idea |
| Item Weight | 1.06 ounces |
| Package Dimensions | 5.24 x 4.45 x 0.28 inches |
| Item model number | 244-BI |
| Model number | 244-BI |
D**K
Bought 2 only 1 works and badly
Only one works and it doesn’t stop charging the cells until the first one of the 4 in series reaches 4.31 volts. Dangerous.