Parkside 20V usb-c charger

🔋 Parkside 20V USB-C PD Charger (DIY)

This is a custom 3D-printed enclosure for a USB-C PD charger for Parkside 20V tool batteries.

The charger allows charging a Parkside 20V battery using a USB-C PD power supply or power bank, combined with a CC/CV boost converter.
An ESP8266 with OLED display shows real-time charging data.

This design is intended for DIY and maker use only.

⚙️ Electronics used

• Parkside 20V tool battery
• USB-C PD trigger module (20V output)
• DC-DC CC/CV boost converter
• DC-DC step-down converter (20V → 5V)
• ESP8266 development board with 0.96" OLED display
• INA219 current & voltage sensor
• USB-C cable (PD capable)
• Spade connectors for battery terminals
• Wiring & connectors

🖨️ 3D printing notes

• Material: ABS / PETG recommended
• No supports required (depending on printer)
• Print orientation: flat bottom on build plate
• Designed for M3 screws

📟 Features

• USB-C PD input (works with power banks)
• Live voltage, current, power & Wh display
• Compact form factor
• Passive cooling (no fan required in normal use)

⚠️ Disclaimer

This project involves high-power lithium-ion batteries.
Build and use at your own risk.
Always double-check wiring and polarity before powering the device.

🔧 License / usage

• Personal & non-commercial use
• Feel free to remix for your own projects
• Credit appreciated if shared
• link for the code:   https://github.com/MayhemXX/Parkside-20V-usb-charger

• Build video: