KEBIDUMEI 6×18650 Power Bank Case 22.5W Fast Charging USB-C

KEBIDUMEI 6×18650 Transparent Power Bank Case — 22.5W Fast Charging, USB-C & LED

Build your own high-capacity portable charger with the KEBIDUMEI Transparent Power Bank Case. Designed for 6 × 18650 lithium batteries, this DIY powerbank shell delivers up to 22.5W fast charging output and supports a wide range of fast-charge protocols — making it perfect for tech enthusiasts, makers, and anyone who needs serious portable power on the go. Made in Mainland China.

Key Features

• High-Strength Transparent Shell: Impact-resistant enclosure protects internal components while letting you see the batteries inside — a sleek, functional design for DIY builds.
• No Soldering Required: Tool-free, weld-free assembly means it's beginner-friendly and easy to put together at home.
• 6 × 18650 Battery Capacity: Accommodates six flat-head, unprotected 18650 cells (65mm long) for extended runtime across multiple charge cycles.
• 22.5W Super Fast Charging: Integrated SCP 22.5W and 22.5W Flash Charge output protocols ensure rapid top-ups for compatible devices.
• Multi-Protocol Support: Compatible with QC4.0+/4.0/3.0/2.0, PD3.0/2.0, PPS, PE2.0/1.1, SFCP, FCP, AFC, VOOC (5V/4.5A), and BC1.2 — works with Apple, Samsung, and most modern smartphones.
• Dual USB Output Ports + USB-C: OUT1 (USB-A): 5V/3.1A, 9V/2.5A, 12V/1.87A | OUT2 (USB-A VOOC): 5V/4.5A, 9V/2.5A, 12V/1.87A | Type-C: 5V/3.7A, 9V/2.22A, 12V/1.67A (PD output).
• Stable Voltage Regulation: High-efficiency regulator circuit ensures consistent output to protect your connected devices.
• Built-In Safety Protections: Multiple protection functions safeguard against overcharge, over-discharge, and short circuits for reliable, worry-free operation.
• LED Charge Indicator: Clearly shows remaining battery status at a glance.

Technical Specifications

Important Assembly Notes

1. After assembly, charge the power bank with a compatible charger to activate it before first use.
2. After activation, fully discharge the unit, then charge for approximately 20 hours to balance the cells.
3. Use only flat-head, unprotected 18650 batteries in good condition. Do not use batteries with pointed tips, protection boards, or damaged casings (insulate any skin breaks before use).

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Learn more: EPA guidance on lithium-ion battery handling

Frequently Asked Questions

Q: What batteries do I need for the KEBIDUMEI 6×18650 Power Bank Case?

A: You need six flat-head, unprotected 18650 lithium batteries that are 65mm in length, have an internal resistance of 50 milliohms or less, and a discharge rate of 1C or higher. Do not use batteries with protection boards, pointed tips, or damaged wrapping.

Q: Does this power bank case support fast charging for iPhones and Samsung phones?

A: Yes! The case supports a wide range of fast-charge protocols including PD3.0/2.0 (for Apple devices), QC4.0+/3.0/2.0 (for Samsung and other Android devices), VOOC, SCP 22.5W, and BC1.2, among others. For best results with phones that use a proprietary protocol, use the USB-C (PD) output for the most stable fast charging.

Q: Is soldering required to assemble this power bank case?

A: No soldering is required. The KEBIDUMEI power bank case is designed for tool-free, weld-free DIY assembly, making it accessible even for beginners and hobbyists.

Q: Can I charge the power bank and use it to charge a device at the same time?

A: Yes — OUT1 (USB-A) supports simultaneous 5V side charging and discharging, allowing you to top up the power bank while also charging a connected device.

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.