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DIY Mini Tube Power Bank Kit – USB Charger Stick (No Cell Included)
DIY Mini Tube Power Bank Kit – USB Charger Stick (No Cell Included)
Assemble your own compact USB power bank using a single 18650 Li-ion cell (not included). Great for small gadgets, LED lights, or emergency phone charging. Easy to assemble and fun for DIY enthusiasts.
⚡ Features
- Holds 1× 18650 Li-ion cell (battery not included)
- USB-A output (5V) for charging phones or accessories
- Micro-USB input (5V) for recharging the tube
- Integrated BMS protection – overcharge, over-discharge, and short-circuit safety
- Durable aluminum/ABS tube housing in multiple colors
- Lightweight and pocket-sized design
📦 Package Includes
- 1× Power Bank Tube Shell (color of your choice)
- 1× Micro-USB charging board
- 1× End cap and internal spring
- Note: 18650 battery not included
🔋 Ideal for hobby projects, DIY makers, and anyone who wants a customizable portable charger solution.
RenewSpark Guarantee: All products are inspected before shipping. If you have any questions, contact us — we’re happy to help.
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Download “RenewSpark Tools” on the iOS App Store — the toolbox I use for battery building.
Shipping info
Click the Shipping & Payments tab above the listing description for more info
Click the Shipping & Payments tab above the listing description for more info!
Additional delivery notes
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Thank you for shopping with us on eBay!
Click the Shipping & Payments tab above the listing description for more info
Accepted Payment Methods
Immediate payment is required upon selecting "Buy It Now" or upon checking out through the cart.
We accept payment via U.S. PayPal accounts and all Major Credit Cards, Debit Cards & Google Pay.
We are legally required to collect sales tax in those states and localities where we maintain a physical presence (nexus).
The applicable amount of sales tax charged to an order will be calculated based on the shipment destination's state and local sales tax laws.
Thank you for shopping with us on eBay!
Returns are accepted
Items must be returned within 30 days of the auction ending
Buyer will pay for return shipping.
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