Top Shelf 1S 4A BMS Protection Boards For Li Ion Cells 12 Pack Battery Management Module Slick Dual Mosfet Overcharge And Short Circuit Bang For Your Buck

12 Pack Single Cell 4A BMS Protection Modules
✔️ Compact thirty five by four millimeter board handles four amps

This pack of twelve battery management modules safeguards single cell lithium ion power banks, flashlights, and portable electronics during daily use. Each unit acts as a dedicated shield against voltage spikes while fitting neatly inside consumer devices that require reliable energy control.

✅ Model HX-1S-3540 delivers precise voltage tracking for single cells
✅ Overcharge threshold sits at four point two five volts plus minus fifty millivolts
✅ Under voltage cutoff triggers automatically at two point five volts
✅ Maximum continuous draw stays steady at four amps with seven amp surge tolerance
✅ Low standby drain keeps power loss under thirty microamps when idle
✅ Four connection pins separate battery input from device output channels

💡 What is a lithium ion single cell BMS protection board used for?
This handy component stops voltage extremes from ruining your power setup.
* The module automatically cuts power when cell levels drop below safe thresholds
* Internal mosfet circuits engage instantly whenever you experience sudden current spikes
* Thermal balance stays stable during extended discharge cycles without damaging connections
* You simply route positive and negative leads through the four labeled terminals for quick integration