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4S 35A BMS is used for 4 series 12V battery pack.The circuit is simple and reliable. Li is for 3.7V li-ion. BMS manufactured by high quality Mos and IC imported.
Keep your battery long cycle service life time. This battery protection module has a equilibrium function to keep each cell in balance and can extend the service life of battery. This battery protection board will protect battery pack from overcharging, over-discharging over-current and short circuit, very useful.
Cover waterproof, dust proof, shockproof, fireproof and anti-static.
This battery protection board is very portable great for DIY work.