Power Pack Pro UPS HAT Lithium Battery Expansion Board For Raspberry Pi Charging

Overview:This is a power expansion Board especially designed for Raspberry Pi, which enables to use the Raspberry Pi with a moveable power source.It's more convenient to use external 3.7V Lithium battery or 3.7V 18650 Lithium battery.Features:- Supports I2S Output with Capacity & Voltage Reading Function (provide algorithms and examples)- Support Raspberry pi or Android & Apple Phone or Pad or other electronic device charging;- Supports charging while discharging,(Very stable, the maximum output current can up to 1.8A while charging, but the chip heat will become larger. maybe you can place a external heatsilk on clip.)- With 4 LED power indicator;- Standard dimension of Raspberry Pi HAT;- Two power supply modes: GPIO power output and USB power out;- Removable battery, The external lithium battery requirements: 3.7V lithium battery; (The battery is not included)- Built-in power path management, perfect support charging While discharging.- Intelligent 3-stage charging (trickle, constant current, constant voltage), it can effectively extend the battery life.- Maximum discharge current: 2A, Maximum charge current: 2A;- Output protection: overcurrent, short circuit, undervoltage protection;- Input protection: overvoltage, overcharge, undervoltage protection;Package Included:1x Lithium Battery Expansion Board