1. SS-904A SE Android series battery activation board, compatible with Android 500+models, battery activation, overload protection, positive and negative polarity identification
2. Compatible With Android 500+ Models: Compatible with MI5X/NOVA9/RENO2/3/VI/MI9/VI X7/HTC/OP/S+/S24/Find/Pura/MT60/MT30/MI MAX/NOTE/X603 and other Android series
3. Snap-on And Ready To Use With Built-in identification Resistor: Built-in battery polarity recognition circuit automatically detects the positive and negative polarity of the battery, ensuring safe and convenient snap-on operation
4. Activate When Low On Battery, Automatically, Switch To Full When Fully Charged: Snap on the battery connector for quick activation without any hassles. The blue light stays solid during charging and turns red when fully charged
5. Overload Protection With Automatic Power-Off: When high voltage exceeding 5A is applied, the protection board automatically cuts off power to prevent damage