XT60 → USB QC3.0 Charger Adapter (Compact Version)
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V1.4 Keep track of versions if you downloaded an old one I advise updating.
Added compatibility with smaller boards, simplified installation, and improved board fixation
🔰 Hello, friends and non-friends!
Since the orcs won't calm down and continue to ruin our lives, we are continuing the Charger project series — this time a compact and maximally convenient, durable, and cheap (Approximately 60 UAH for components)
It is designed for those who have FPV batteries or any other batteries on hand, so you can power your gadgets even when there are power issues.
Simply connect a battery — and you can charge your phone, flashlight, camera, or any other device via USB QC3.0
May this small device help you stay connected —
because we cannot be broken, we are moving towards Victory. ⚡
🔋 XT60 → USB QC3.0 Charger Adapter (Compact Version)
This adapter converts an FPV or LiPo battery with an XT60 connector into a portable QC3.0 fast charger.
It is designed to power smartphones, cameras, walkie-talkies, flashlights, or other devices directly from field batteries.
The adapter's design is engineered to be printed without supports, compact, lightweight, and easy to assemble
⚙️ Design Features
- Reliable XT60 connector retainer, which can be secured with a screw or a drop of glue through the service hole.
- The internal space is designed for a QC3.0 Buck Converter (6–32V → 5/9/12V).
- Metal keyring eyelet: a furniture nail (steel pin Ø1–2 mm) is used, which serves as an axis for a ring or carabiner.
This solution is made instead of a plastic eyelet, which can break under load over time.
⚡ Technical Specifications
| Parameter | Value |
|---|---|
| Input | XT60 (6–32 V DC) |
| Output | USB-A (QC2.0 / QC3.0) |
| Voltage | 5 V / 9 V |
| Power | up to 24 W (depending on module) |
| Board size | ≈ 35 × 20 mm |
| Recommended print | PLA / PETG, 0.2 mm layer, 80–100% infill in XT60 area |
⚠️ Warning
FPV/LiPo batteries do not have built-in over-discharge protection (BMS).
After connecting, monitor the voltage level — prolonged use can over-discharge the battery and damage it.
✅ The current voltage is displayed on the screen (or external voltmeter) — do not allow it to drop below 3.2 V per cell
Minimum safe voltage for LiPo batteries:
| Configuration | Number of cells | Minimum per cell | Minimum total |
|---|---|---|---|
| 🔋 3S | 3 | 3.2 V | 9.6 V |
| 🔋 4S | 4 | 3.2 V | 12.8 V |
| 🔋 5S | 5 | 3.2 V | 16.0 V |
| 🔋 6S | 6 | 3.2 V | 19.2 V |
💡 Tip: For greater LiPo longevity, do not discharge below 3.3 V/cell.
You can use a LiPo-Alarm or a small voltmeter to monitor the charge level.
🧰 Required Components
| Component | Description / Purpose | Approximate price | Link |
|---|---|---|---|
🟦 MH-KS24 QC3.0 Buck Converter ATTENTION CHINESE MANUFACTURERS MAKE THESE BOARDS IN DIFFERENT SIZES, WITH A DIFFERENCE OF SEVERAL MILLIMETERS. I HAVE MADE 3 DIFFERENT CASE VARIANTS BECAUSE BOARDS OF DIFFERENT REVISIONS DIFFER IN SIZE, IN THE PROFILE
| DC-DC Step Down 6–32V → USB-A QC2.0/QC3.0 | ~1.08 € | AliExpress |
🟨 XT60 Connectors ( Male )
| For connecting to an FPV battery | ~7.61 € (10 pairs) | AliExpress |
🧷 Furniture Nail (Ziernagel)
| Metal axis for ring/carabiner (Ø 1–2 mm) | ~1 € / set | Any furniture or hardware store |
⛓️ Carabiner with keyring  Or you can use a ring from an F1 grenade and similar ones  | For hanging the adapter or carrying as a keychain | ~5.19 € (50 pcs) | AliExpress |
💡 Recommendations
- To increase the reliability of the XT60 contact, it can be secured with glue or a self-tapping screw.
- Be sure to insulate the wires to avoid short circuits.
- Do not leave the battery connected for a long time after charging devices.
- Link to a more powerful version with a voltmeter https://makerworld.com/en/models/1567777-power-adapter-sharger-6s-to-usb-type-c-100w#profileId-1648328
and without a voltmeter https://makerworld.com/en/models/2331078-xt60-tup-c-charger-adapter-compact-version#profileId-2547040
Thanks to Maksym https://x.com/Maxwell255 https://www.facebook.com/maxim.kolnoochenko for help with selecting electronic components 💡
🪫 Copyright Terms
I, as the author of this model, prohibit any commercial use without my written consent.
Manufacturing for personal use or free manufacturing for military and volunteers is allowed.
If you want to produce this product commercially — please contact me for approval.
In case of detection of sale or publication of the model without the author's consent — a complaint for copyright infringement will be filed.
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