6x18650 DIY Power Bank Case – LED Display & Quick Charge
6x18650 DIY Power Bank Case – LED Display & Quick Charge
Build Your Own High-Capacity Power Bank
The 6x18650 Power Bank Case lets you create a custom portable charger using six 18650 flat-top lithium batteries (not included). With a compact plastic shell, LED digit display, built-in flashlight, and both standard and quick-charge support, this is the ultimate DIY charging solution for your mobile devices. No welding required — simply insert your batteries and go.
Made in Mainland China.
Key Features
- Fits 6 × 18650 Batteries — Accommodates six 3.7V flat-top ternary lithium 18650 batteries (batteries not included)
- Dual Charging Modes — Standard charge (5V–2.1A) and Quick Charge (5V–3A / 9V–2A / 12V–1.5A); auto-detects your device's capability
- Micro-USB + Type-C Input — Type-C port for input charging; versatile connectivity
- LED Digit Display — Monitor battery level at a glance
- Built-in Flashlight — Handy integrated LED flashlight for emergencies
- Anti-Reverse Connection Protection — Safeguards your batteries and connected devices
- Removable & No-Weld Design — Tool-free battery installation and removal
- Available in White or Black — Choose the color that suits your style
Specifications
| Battery Compatibility | 6 × 3.7V 18650 Flat-Top (Ternary Lithium) |
| Standard Input/Output | 5V – 2.1A |
| Quick Charge Input/Output | 5V–3A / 9V–2A / 12V–1.5A (auto) |
| Input Ports | Micro-USB, Type-C (input only) |
| Material | Plastic |
| Dimensions | 137 × 80 × 23 mm |
| Colors | White / Black |
| Batteries Included | No |
Package Contents
- 1 × 18650 Power Bank Case Shell
Note: Batteries are NOT included. Only 3.7V flat-top 18650 ternary lithium batteries are compatible. Color may vary slightly due to lighting and display differences. Measurement tolerance: ±1–3 cm.
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Learn more: ENERGY STAR product efficiency guidance
Frequently Asked Questions
Q: What type of 18650 batteries are compatible with this power bank case?
A: This power bank case is compatible only with brand new 3.7V flat-top 18650 batteries made of ternary lithium material. Button-top or non-flat-top batteries will not fit correctly. Batteries are not included and must be purchased separately.
Q: Does the Type-C port support both input and output charging?
A: The Type-C port on this power bank case supports input only (for recharging the batteries inside the case). It does not support output via Type-C. Use the standard USB-A output port to charge your mobile devices.
Q: How does the quick charge feature work — do I need to manually switch modes?
A: No manual switching is needed. The quick charge function (5V–3A / 9V–2A / 12V–1.5A) activates automatically when a compatible quick-charge device is detected. Devices that do not support quick charge will default to the standard 5V–2.1A output.
Q: Is any soldering or special tools required to assemble this power bank case?
A: No soldering or special tools are required. The case features a no-weld, removable design, making battery installation and replacement easy and straightforward.
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.