2S 50A Battery Protection Board 3.7V Low Power Consumption with Passive Balancing Reverse Connection Protection for 21700 Fan

Quantity : 1 High-concerned chemical : none Package : SOP is_d : Yes Supply Voltage : 3.7V Application : Computer Type : Voltage Regulator Origin : Mainland China Condition : New Operating Temperature : 0-50C

1. Sustainably outputting a high current of 50A, meeting the usage requirements of high-power equipment 2. Utilizing high-reliability components ensures stable operation and low temperature rise 3. Equipped with a built-in passive charge equalization function, it extends the life of the battery pack 4. The product comes with built-in input reverse polarity protection, ensuring safer use 5. Using high-quality materials ensures product quality With input anti-reverse connection Equipped with passive equalization function Suitable for 2S 3.7V batteries 50A output 4.15V overshoot release (single cell) Static current: 1.8uA Dormant current 0.2uA Product Introduction This product is a low-power battery pack protector designed for primary protection of two lithium-ion/polymer rechargeable batteries connected in series. It features a balancing function, but the balancing current is only slightly over 20 mA, which can only be used to eliminate the accumulated voltage difference during the same cycle. Significant differences in voltage cannot be compensated through passive balancing. This requires professional active balancing to address. Notes: 1. Please check the voltage of each battery cell in the battery pack before purchasing! It is useless to replace the protection board if the battery is abnormal! Products that have been soldered are non-returnable and non-exchangable! 2. Before installing the protective board, please carefully check whether the positive and negative poles of the battery correspond to the positive and negative poles on the protective board. If the positive and negative poles of the protective board are connected incorrectly, it may cause damage to the module! 3. Lithium battery protection boards cannot be used for lithium iron phosphate batteries, xenon lamps, high-power electric hand drill battery packs, electric fish machine battery packs, electric bicycle battery packs, children's car batteries, high-probability motors, or products with motors. Customers purchasing combinations of the above items are kindly advised to take note! 4. The battery must be charged with a charger specifically designed for lithium batteries. Do not use a lead-acid battery charger, as lead-acid charging may cause high voltage to break down the protection board MOS tube, resulting in overcharging without protection from the protection board. The charger voltage for polymer batteries = the number of battery strings X 4.2V. Module *1/3/5（by your choice）

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