6x21700 Battery Case QC3.0 Fast Charge & LCD Display
6x21700 Battery Case QC3.0 Fast Charge & LCD Display
DIY 6x21700 Battery Storage Case with QC3.0 Fast Charging & LCD Display
Take full control of your portable power with this versatile 6x21700 Battery Case. Featuring Quick Charge 3.0 (QC3.0) technology, a clear LCD digital display, and a detachable, reusable shell design, this battery storage box is perfect for DIY power bank builds and off-grid energy projects.
Key Features
- Fits 6x 21700 Flat-Top Lithium Batteries — Spacious slots for six 21700 cells; batteries are not included.
- QC3.0 Fast Charging — Rapid charge input/output so your devices get powered up quickly and efficiently.
- LCD Digital Display — Real-time battery capacity readout so you always know exactly how much charge remains.
- Wireless Charging Support — Compatible with 10W/10W 5W and 22.5W/22.5W 15W wireless charging modes.
- Detachable & Reusable Design — Shell can be disassembled and reassembled repeatedly for easy battery swaps and maintenance.
- Durable Premium Plastic Construction — Wear-resistant material built to withstand everyday use.
- Compact & Lightweight — Mini portable form factor (approx. 166 × 86 × 29 mm / 6.53 × 3.38 × 1.14 in) slips easily into a bag or pocket.
Specifications
| Battery Compatibility | 6 × 21700 Flat-Top Lithium (not included) |
| Charging Type | QC3.0 / 10W / 22.5W / Wireless |
| Display | LCD Digital Capacity Indicator |
| Material | Durable Plastic |
| Dimensions | Approx. 166 × 86 × 29 mm (6.53 × 3.38 × 1.14 in) |
| Country of Origin | Made in China |
What's in the Box
- 1 × Battery Storage Case Shell (batteries not included)
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Note: Please allow 1–2 cm variance due to manual measurement. Colors may vary slightly between monitors and the actual product.
Learn more: EPA guidance on lithium-ion battery handling
Frequently Asked Questions
Q: What batteries are compatible with this 21700 battery case?
A: This case is designed specifically for 6 × flat-top 21700 lithium batteries. Please ensure your cells are flat-top (non-button-top) 21700 format. Batteries are not included with the case.
Q: Does this battery case support wireless charging?
A: Yes! The case supports multiple charging modes including 10W and 22.5W wireless charging as well as wired QC3.0 fast charging for versatile compatibility with a wide range of devices.
Q: How does the LCD display work?
A: The built-in LCD digital display shows real-time battery capacity, allowing you to monitor remaining power at a glance without any guesswork — ideal for DIY power bank projects and extended use.
Q: Can I disassemble and reassemble the case to swap batteries?
A: Absolutely. The detachable shell is engineered for repeated disassembly and reassembly, making battery swaps quick and straightforward whenever you need a fresh set of cells.
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.