3-Pack USB Lithium Battery Charging & Protection Module Board

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.product-description { font-family: Arial, sans-serif; max-width: 600px; margin: auto; line-height: 1.6; } Product Features Equipped with a micro USB female input port, the charger can directly use a mobile charger to charge the lithium battery. The charger retains input voltage wiring solder joints for enhanced convenience. Simply connect the battery to the B - port. When you insert a mobile phone charger into the USB female port, the red light indicates charging, and the green light indicates a fully charged battery. Specifications Input Voltage: 5V Maximum Charging Current: 1000 mA Charge Cut-off Voltage: 4.2 V (±1%) Battery Overcharge Protection Voltage: 2.5 V Battery Over-current Protection Current: 3 A Input Interface: Micro USB Dimensions: 2.6 x 1.7 cm Package Includes 3x Charger Module Board Show more