Power Bank 18650 Li-po
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Since the well-known contraceptives present us with new challenges, requests for modeling everything related to **batteries, energy, and lighting** are growing — I continue to make practical things on this topic.
So, here's another variation of a universal **PowerBank enclosure**, designed for various cell types and field conditions
V 1.7
Soldier PowerBank – a universal enclosure for 18650 and any Li-Po or Li-Ion
This is a durable, repairable enclosure for a field power bank.
The design has a fully **removable internal cassette**, making it easily adaptable to various battery types
🔋 The enclosure fits:
- up to 8 18650 batteries,
- or any Li-Ion or Li-Po cells from disposable vapes and other devices.
Space is provided for a charge indicator, button, wiring, and a QC module
⚠️ Attention during assembly
- Always check the length of the screws — screws that are too long can damage the battery, pierce insulation, or cause a short circuit.
- The best assembly technology is nickel strip + spot welding.
- If you don't have a spot welder, you can use copper wire and a soldering iron, but you need to work quickly and carefully, without overheating the cells.
- Remember: Li-Ion is not a toy. Always observe minimum safety rules and contact insulation.
📦 Bill of Materials (BOM)
| Component | Quantity | Note / Recommendation | Link |
|---|---|---|---|
QC 4.0 / QC 3.0 PowerBank Module
| 1 | Main electronics, LED, USB, Type-C | AliExpress |
TZT QC4.0/QC3.0 Dual USB 5V 4.5A LED (alternative board)
| 1.1 | Alternative board with two USB outputs, LED indication, and fast charging support | https://a.aliexpress.com/_EzZfbmk
|
Nickel strip or wires
| As needed | For spot welding cells (recommended) | – |
| Short self-tapping screws | 4–6 pcs | Always check the length! | – |
18650 batteries (optional) | up to 10 pcs | Alternative option | – |
Li-Po cells from vapes (optional)
| any amount | Suitable due to universal cassette | – |
iPhone / smartphone batteries (optional) | 1–2 pcs or more | Can be installed if the cassette or mounting is adapted |
📌 Additional Information
- Recommended print settings:
- first layer 0.2 mm,
- other layers 0.2 mm.
- The enclosure has a safety margin (I KNOW YOU THROW THEM FROM DRONES), suitable for field conditions and quick repairs.
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