It will charge the batt as well, supports bi-directional quick charge. This module can be used as a universal mini power bank, also works with other 5V devices Li-ion Battery HAT x1 RPi screws pack (2pcs) x1 HAT Batterie Li-ion Raspberry Pi Batterie Li-ion 5V Pour Pi - Test Et Avis Batterie Raspberry Pi Overview The Li-ion Battery HAT integrates SW6106 power bank management chip, allows providing 5V regulated power supply to your Pi from a battery, makes the Pi becomes a portable device. Onboard SW6106 chip, supports bi-directional quick charge, supports multi quick charge protocols like PD/QC/FCP/PE/SFCP Lithium batt protection circuitry, provides reverse protection, over charge/discharge protection, over current protection, and short circuit protection Il prend en charge la charge rapide bidirectionnelle et pt fonctionner comme une mini banque d'alimentation universelle pour d'autres appareils 5V. Ce module n'est pas un UPS et provoquera le redémarrage du Raspberry Pi lors de la connexion Convert a Waveshare Raspberry Pi UPS HAT Into Standalone a 5V Power Features Onboard SW6106 chip, supports bi-directional quick charge, supports multi quick charge protocols like PD/QC/FCP/PE/SFCP battery protection circuitry, provides reverse protection, over charge/discharge protection, over current protection, and short circuit protection Onboard indicators: quick charge, warning, and power capacity Specifications Output voltage: 5V Applicable battery: 3., 7V battery (4., 2V when full charged) Dimension: 65mm × 30mm Mounting hole size: 3., 0mm Development Resources Wiki : www., waveshare. The Li-ion batt HAT integrates SW6106 power bank management chip, allows providing 5V regulated power supply to your Pi from a batt, makes the Pi becomes a portable device. This module can be used as a universal mini power bank, also works with other 5V devices.