Changes

* 1 x X'''X12-FAN40 V1A1 Base Kit''' - X12-A1 18650 battery holder (4-cell parallel) x1 - 2-pin 2.0 PWM Controlled Fan HAT54mm pitch male-to-male cable AWG18 30cm x2 * '''X12-A1 Stackable Kit - For use with X12-A1 base kit''' - X12-A1 18650 battery holder (4 x -cell parallel) x1  - 2-pin 2.54mm pitch male-to-male cable AWG18 10cm x2  - Spacer M/F 22mm x4   - Screw M2.5x12mm5x5mm x4* 4 x Spacer F/F M2.5x20mm* 8 x - Screw nut M2.5x5mm5 x4