BMS protection board for Li-ion batteries 4S (4 cell) 4 A

Balancing and protection board (BMS) for packs of 4 lithium-ion 18650 batteries with a working current of up to 4 A.

Product code	01912
Category	BMS Boards
In stock	10+ in stock

43 TL

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§ 02 — Description

The 4S 4A BMS board is designed to protect and balance battery packs made of 4 series-connected Li-ion cells (for example, 18650). It ensures safe battery operation by preventing overcharging, overdischarging, short circuits and overcurrent. The module automatically equalizes the voltage between cells during charging, which extends battery life and improves the stability of the entire battery pack. Suitable for portable devices, DIY projects, power tools and backup power systems. Product specifications: Type: BMS (Battery Management System) Configuration: 4S (4 cells, 4 batteries in series) Nominal pack voltage: 14.8 V Maximum voltage: 16.8 V Operating current: up to 4 A Battery type: Li-ion / Li-Po (18650 and similar) Protection against: overcharging overdischarging short circuit overcurrent Cell balancing: yes Mounting type: soldering Dimensions: compact (depend on batch) Application areas: 14.8 V battery packs Power banks and portable power sources Electronics and DIY projects Low-power power tools Robotics and autonomous devices