Changes

The X12-A1 V1.0 is a 4-cell parallel 18650 battery holder designed to accommodate four 18650 batteries. Each battery is protected by a resettable ultra-low resistance fuse to prevent over-discharge. It features four XH2.54 connectors for easy integration with UPS HAT models such as the X1209 and X1203, and supports a stackable design, allowing for capacity expansion through multiple bases.