Note: the Raspberry Pi is NOT included. DESCRIPTION: Li-polymer Battery HAT for Raspberry Pi, SW6106 Power Bank Solution, with Embedded Protection Circuits Overview: The Li-polymer Battery HAT integrates SW6106 power bank management chip, allows providing 5V regulated power supply to your Raspberry Pi or other 5V devices, from a high capacity Li-polymer battery. It will charge the battery as well, supports bi-directional quick charge. Compared with the Li-ion Battery HAT, this HAT utilizes Li-polymer battery with higher capacity, which means longer battery life, and allows higher loads. The size of the HAT is more fit for Raspberry Pi B/A+/B+/2B/3B/3B+/4B. SAFETY CAUTIONS Li-ion and Li-po batteries are quite unstable. They may cause fire, personal injury, or property damage, if they're not properly recharged or used. Do not reversely connect the polarities when recharging or discharging the battery. Do not use inferior charger/charging panel to recharge the battery. Do not mix use old batteries with new ones, avoid using batteries of different brands. When buying Lithium battery, should always make sure the battery specification is compatible with the expansion board. Choose batteries from formal manufacturer, and ensure the batteries will work stably and safely by aging test. Lithium batteries have limited cycle life, they will also deteriorate as time goes by. Should be replaced with new ones when the batteries reaching their max cycle life, or working over two years, whichever comes first. Should be placed carefully and properly, keep it away from inflammables and explosives articles, away from children, avoid any safety accident caused by careless storage. Features Onboard SW6106 chip, supports bi-directional quick charge, supports multi quick charge protocols like PD/QC/FCP/PE/SFCP Lithium battery protection circuitry, provides reverse protection, over charge protection, and short circuit protection Onboard indicators: quick charge, power capacity PH 2.0 battery connector, for connecting the 3.7V 3000mA high capacity Li-polymer battery (MSDS certified) Specifications Output voltage: 5V Charge voltage: 5V Applicable battery: 3.7V Li-polymer battery (4.2V when full charged) Dimension: 65.0mm × 56.5mm Mounting hole size: 3.0mm