V5 - DIY Power Station with 4x Makita 21V Batteries, 500W Pure Sine Inverter, Custom 3D Printed Box

This is my new V5 DIY Power Station — upgraded for more power, flexibility, and portability ⚡ It uses 4 standard Makita 21V batteries, allowing fast swapping and continuous operation. Perfect for DIY, repair work, outdoor use, and emergency backup. The enclosure is fully designed and 3D-printed by me. Inside is a 500W pure sine wave inverter (21V → 220V), delivering clean and stable AC output for tools, fans, lights, laptops and small household devices. The V5 station includes: • Dual 220V AC outlets • Dual Type-C fast-charge ports (45W / 1 port) • 1× USB-A port • Separate push-button switches for DC and AC • Electronic power meter for V/A/W/Wh monitoring • Active cooling • Heavy-duty steel carry handle 🔥 **Main Features** • Runs household devices up to 500W • Hot-swappable Makita batteries • Pure sine output for sensitive electronics • Clean internal layout, safe wiring, stable operation • Compact, strong and ready for field use 3D File : https://makerworld.com/en/models/2051570 🔧 **Parts List (Components Used):** • 500W Pure Sine Wave Inverter (21V → 220V) • 4 × Makita 21V standard batteries • 4 × Makita battery dock connectors • 2 × LED push buttons (1 red, 1 green) • KWS-AC300 20A electronic meter (Voltage / Current / Power / Wh) • 1 × 3-pin 220V AC outlet • 1 × 2-pin 220V AC outlet • QC3.0 / PD 100W fast-charge module • Heavy-duty steel carry handle • Fully custom 3D-printed PLA+ enclosure V5 DIY Power Station — stronger, smarter, and more versatile than ever. #DIY #PowerStation #Makita21V #500WInverter #PureSineWave #3DPrinted #PortablePower #BatteryPack #QC30 #PD30 #KSTDIY #KSTV5