DIY USB Power Bank Case for 18650 Battery – Portable Charger
DIY USB Power Bank Case for 18650 Battery – Portable Charger
DIY USB Power Bank Case for 18650 Battery
Build your own portable charger with this compact, lightweight USB power bank case designed to hold one standard 18650 battery. Made from durable, textured hard plastic, it's shockproof and anti-slip — perfect for keeping your devices powered while traveling, commuting, or working outdoors. Battery and charger are not included; this is the DIY enclosure only.
Made in Mainland China.
Key Features
- Ultra-Portable Design: Slim and lightweight enough to slip into a pocket or bag — charge your devices on the go, anywhere, anytime.
- Easy Battery Access: Simple open-and-swap design lets you replace your 18650 cell in seconds — no tools, no hassle.
- Durable Hard Plastic Shell: High-quality, textured plastic construction stands up to daily wear, drops, and rough handling.
- Anti-Slip & Shockproof: Textured exterior provides a secure grip and protects against bumps and impacts.
- Versatile DIY Use: Compatible with any standard 18650 lithium cell — great for electronics enthusiasts and DIY makers.
- Reusable: Swap batteries as needed, making this case a long-term, eco-friendly power solution.
Specifications
| Material | Hard Plastic |
| Battery Compatibility | 1 x 18650 (not included) |
| Output | USB |
| Quantity | 1 PCS |
| Color | As shown in images |
| Battery Included | No |
| Charger Included | No |
| Origin | Mainland China |
What's in the Box
- 1 x USB Power Bank Battery Case (18650 shell only)
Note: Please allow slight color differences due to monitor settings. Minor measurement variations may occur.
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Learn more: EPA guidance on lithium-ion battery handling
Frequently Asked Questions
Q: Does this USB power bank case come with an 18650 battery included?
A: No, this product is the DIY battery case shell only. You will need to supply your own 18650 lithium battery separately. This gives you the flexibility to choose the capacity that best suits your needs.
Q: Is this 18650 power bank case compatible with all 18650 batteries?
A: Yes, this case is designed to fit any standard 18650-size lithium cell. Simply insert your 18650 battery, close the case, and you're ready to charge via USB.
Q: How do I replace the battery in this portable USB power bank case?
A: The case features a simple open-and-swap design. Just open the battery compartment, remove the old 18650 cell, insert a fresh one, and close the case — no tools or complicated steps required.
Production & Packaging Notice
To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.