X306 is a one cell UPS shield designed for Raspberry Pi Zero 2 / 2W.
Enhanced Battery Holder: X306 V1.5 (Oct 2025) upgrades the battery holder for smoother installation, removal, and long-lasting reliability
Compatibility: Compatible with Raspberry Pi Zero 2 W ONLY, NOT support Raspberry Pi Zero/Zero W; Model: X306 V1.5; Matching Case: X306-C1 is the compatible case for X306 V1.3 and V1.5
One-Cell UPS HAT: Ideal Uninterruptible Power Supply (UPS) solution for Raspberry Pi Zero 2W, Max 5.1V 4000mA Power Backup with single cell battery holder
How to Power: Power via USB Type-C 5V Power In port of X306; 5Vdc +/-5% , ≥3A; Use UL listed 20W 5V 4A USB Type-C power adapter
Cooling Solution: Recommend to use with C296 aluminum heatsink for Raspberry Pi Zero 2 W