DIY USB-C 65W Fast Charger from LiPo Battery - Free 3D Print Model

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Afrimaster

Hobby & DIY>Electronics

IP Report

Print Profile(1)

All

H2D

P1S

A1 mini

X1 Carbon

X1E

P1P

H2D Pro

0.2mm layer, 2 walls, 15% infill

Designer

45 min

1 plate

Open in Bambu Studio

Boost

Released

Description

Project Overview

This project is a compact, high-power USB-C fast charging module powered directly from a LiPo battery (up to 6S). It’s ideal for field charging small 1S batteries using a high-capacity LiPo, such as a 6S pack. Additionally, it can be used to charge other USB-powered devices like smartphones, FPV goggles, and transmitters (radio controllers). The module supports USB Power Delivery (PD 3.1), Quick Charge (QC 3.0), and other fast-charging standards up to 65W.

Features

Input: 2S to 6S LiPo (approx. 6.6V to 25.2V)
Output: USB-C PD 3.1 / QC 3.0 / SCP / PPS (5V, 9V, 12V, 15V, 20V)
Output Power: Up to 65W
Compact and portable 3D printed case
Optional heatsink for high load use
LED indicator for power/activity

Bill of Materials (BOM)

PD65W Fast Charging Module (USB-C)
AliExpress Link
6S LiPo Battery (e.g. 1300mAh 100C)
28 AWG Silicone Cable (Red/Black)
AliExpress Link
Optional: Aluminum Heatsink
AliExpress Link
Voltage Monitor / Cell Checker (for LiPo safety)
AliExpress Link

Mini Build Guide

Soldering
- Connect the 28 AWG silicone wires from the XT60 plug to the input terminals of the PD module (ensure correct polarity!).
- Optionally add a small heatsink to the main inductor for thermal stability under high load.
Assembly
- Place the wired module into the 3D printed base.
- Slide the frame over the base to secure the sides.
- Align the lid and press-fit it or glue if preferred.
- Plug in the USB-C cable and test with a compatible device.
Usage Tips
- Always monitor LiPo voltage using a cell checker.
- Avoid discharging the battery below 3.60V per cell.
- Do not leave the device powered inside a backpack or enclosed space.

Notes

This device is actively in use and tested with 6S LiPo batteries. It’s suitable for outdoor use, particularly for FPV pilots or field technicians needing fast USB power from high-capacity RC batteries. Great for charging 1S LiPos, smartphones, FPV goggles, and radio transmitters.

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License

This user content is licensed under a Standard Digital File License.

You shall not share, sub-license, sell, rent, host, transfer, or distribute in any way the digital or 3D printed versions of this object, nor any other derivative work of this object in its digital or physical format (including - but not limited to - remixes of this object, and hosting on other digital platforms). The objects may not be used without permission in any way whatsoever in which you charge money, or collect fees.