PROTECTION AND SAFETY---Protection Board will protect battery pack from overcharging, over-discharging over-current and short circuit and Protection circuit board is the heart of battery pack, must to have to avoid battery pack from explosion, fire and damage
BALANCE---Battery Protection Board has balance function which would ensure each battery cell being fully charged at same time
APPLY---The protection board is for 4 series cell Li-ion batteries,It can be used for lithium batteries with different chemical properties such as ion, lithium polymer, lithium cobalt oxide etc
BATTERY---Choosing the correct protection board and applying it appropriately is vital to the longevity your batteries