GeeekPi UPS Gen 6 Power Supply Uninterruptible UPS HAT for Raspberry Pi 5/4B, with Aluminum Heatsink

Expandable Battery Capacity: Supports up to 4 channels of 8.4V lithium battery groups in parallel, using two 3.7V 18650 lithium batteries connected in series per slot (18650 batteries not included), enabling extended runtime for Raspberry Pi 5/4B and other SBCs
Seamless Power Transition & Auto-Recovery: Features bumpless transfer between external power and battery backup, with configurable voltage thresholds for automatic restart after power restoration
Real-Time Monitoring & Custom Control: Utilizes I2C communication to monitor battery voltage, temperature, and capacity. Supports PikaPython scripting for advanced DIY status control and programmable LED indicators
Future-Proof via OTA Upgrades: Unlock new functionalities through over-the-air (OTA) firmware updates, ensuring compatibility with future enhancements and custom firmware uploads via DFUFuture-Proof via OTA Upgrades: Unlock new functionalities through over-the-air (OTA) firmware updates, ensuring compatibility with future enhancements and custom firmware uploads via DFU
Data Protection & Safe Shutdown: Includes a safe shutdown countdown timer to prevent data loss during outages and protects against low-battery loops, ideal for critical applications