HUXUAN 18650 DIY Power Bank Case – 4-Slot No-Solder Kit
HUXUAN 18650 DIY Power Bank Case – 4-Slot No-Solder Kit
Build Your Own Portable Power Bank – No Soldering Required!
The HUXUAN 4-Slot 18650 DIY Power Bank Case lets you create a fully customizable, high-capacity portable charger in minutes — no soldering tools, no professional skills needed. Simply insert four 18650 batteries (sold separately), tighten the screws, and you have a compact, travel-ready power supply. Made in Mainland China.
Why You'll Love It
- Weld-Free, Hassle-Free Assembly: Spring-loaded battery slots and a screw-fixed shell mean anyone can build this kit at home. No messy soldering, no extra costs, no complicated steps — just insert batteries and go.
- Multi-Protocol Fast Charging: An intelligent circuit board supports QC 18W, PD 20W, SCP 22.5W, and standard 5V/2.4A output. It auto-detects your device's protocol and also offers a low-current mode safe for earbuds, smartwatches, and other small gadgets.
- Replaceable Battery Design: When your 18650 cells reach the end of their cycle life, simply unscrew the shell and swap them out. No need to throw away the whole unit — upgrade capacity anytime by choosing higher-mAh batteries.
- Rugged ABS Shell with Carbon Fiber Texture: High-quality hard ABS construction offers excellent scratch resistance, drop resistance, and a confident anti-slip grip. Built for everyday commutes, hiking trails, camping trips, and more.
- Multi-Port Simultaneous Charging: Features 2 USB-A output ports, 1 USB-C port, and 1 Micro-USB input — charge two devices at the same time and recharge the bank itself with ease. Compatible with most standard cables on the market.
Specifications
- Material: ABS Shell, Intelligent Circuit Board, Metal Spring Contacts
- Size: Approx. 10 × 8 × 2.3 cm (palm-sized)
- Colors Available: Blue, Green, Black, Red
- Ports: 2× USB-A Output, 1× USB-C, 1× Micro-USB Input
- Output Protocols: QC 18W, PD 20W, SCP 22.5W, 5V/2.4A
- Compatible Batteries: 4× 18650 (NOT included)
- Quantity: 1 set (case + circuit board only; batteries not included)
- Made in: Mainland China
Perfect For
Daily commuting, outdoor travel, camping, emergency backup power, DIY electronics projects, and charging multiple gadgets on the go.
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Note: Photos may not reflect actual size. Please refer to specifications above for dimensions. Slight color differences may occur due to monitor settings. Allow minor measurement variance of ±0.5 cm.
Learn more: EPA guidance on lithium-ion battery handling
Frequently Asked Questions
Q: Does the 18650 DIY power bank case come with batteries included?
A: No — the kit includes the ABS power bank shell, intelligent circuit board, and metal spring contacts only. You will need to source four 18650 lithium batteries separately to complete your DIY power bank build.
Q: What fast-charging protocols does the HUXUAN power bank case support?
A: The built-in intelligent circuit board supports QC 18W, PD 20W, SCP 22.5W, and standard 5V/2.4A charging output. It automatically identifies the connected device's protocol, ensuring fast and safe charging for phones, tablets, earbuds, smartwatches, and more.
Q: Can I replace the 18650 batteries when they wear out?
A: Absolutely! The screw-fixed split shell design allows you to open the case at any time, remove old batteries, and insert fresh or higher-capacity 18650 cells — giving this power bank kit an extended lifespan and fully customizable capacity.
Q: How many devices can I charge at the same time with this power bank case?
A: The case features two USB-A output ports, so you can charge two devices simultaneously. The USB-C port can also be used for output on compatible devices, making it very versatile for multi-device use on the go.
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.