About this product
A 1S battery protection board for a single 3.7V cell. • The photo is a 1S board: one 3.7V cell, not a 3-cell pack. • It sits between the cell and the rest of the box and cuts off on over-charge or over-discharge. • Battery pads are B+ and B−. Load and charge leave from P+ and P−. • Solder the cell on before anything else is powered.
Used in DIY projects
Reward ৳100Reviews
★ 4.0 from 1- ★★★★★ · নাসরিন আক্তার · 23 Oct 2026Good value
Does the job for the price. Wish the cable was longer.
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