4S 30A 14.8V Li-ion Lithium Battery BMS PCB Protection Board – For 18650 Battery Packs

Building a 4S lithium-ion battery pack?

You need this BMS board.

It’s rated for 30A continuous current at 14.8V nominal.

Protects against overcharge, over-discharge, short circuit, and overcurrent.

Works with 18650 cells and other Li-ion chemistries.

No brand name, no frills—just a solid PCB that does its job.

Bare board, ready to solder.

Double-check your wiring before you power up.

Cheap insurance for your battery build.