Description
The Single 18650 Li-Ion Battery Power Bank Case is a sleek, compact, and economical portable power solution designed to turn a spare 18650 lithium-ion cell into a pocket-sized emergency charger. Featuring a durable aluminium body with a stylish powder-coated matte finish, this enclosure houses a single removable 18650 battery, providing a stabilized 5V 1A output via a standard USB-A port.
Equipped with an onboard charging and discharging circuit, it serves a dual purpose: functioning as a portable power bank for your smartphone, development boards, and DIY electronics, while also acting as a standalone battery charger via its Micro-USB input port. Built-in LED indicators show clear status feedback for both charging and discharging states.
Caution & Note: Pay strict attention to battery polarity during installation; placing the battery the wrong way will permanently burn the internal circuit. 18650 battery is not included.
Key Features
- Sleek Aluminium Enclosure: Premium metal body featuring a durable, stylish powder-coated matte finish designed for pocket portability.
- Stabilized 5V 1A Output: Delivers a reliable 5V DC power output (up to 1A) to charge mobile devices, microcontrollers, and DIY projects.
- Dual-Purpose Utility: Functions simultaneously as a portable backup power bank and a convenient charger for individual 18650 cells.
- Removable/Replaceable Cell Design: Easily swap out drained 18650 cells for fully charged ones when away from wall outlets.
- Built-in LED Telemetry: Onboard multi-color LED indicator clearly displays charging and discharging status.
Benefits
- Pocket-Sized Portability: Ultra-compact cylindrical form factor fits easily into bags, pockets, and travel toolkits.
- Endless Runtime via Swappable Cells: Never worry about running out of juice on long trips—just carry spare pre-charged 18650 cells.
- Versatile Maker Application: Excellent power source for DIY electronics, portable sensors, and microcontroller development boards.
- Plug-and-Play Simplicity: Simple drop-in battery installation with standard Micro-USB input and USB-A output ports.
Applications
- Emergency Mobile Backup: Compact pocket charger to keep smartphones running during unexpected power loss or travel.
- DIY & Microcontroller Projects: Portable 5V power supply for Arduino, ESP32, and custom electronics builds.
- EDC & Travel Kits: Lightweight portable power source for flashlights, small gadgets, and emergency gear.
- 18650 Battery Charger: Convenient desktop housing to recharge loose cylindrical lithium cells using standard phone chargers.
Package Includes
- 1 x 5V USB Aluminium Body Power Bank Case for 18650 Battery (Black)
- 1 x Instruction Manual / Quick Guide
Specifications
| Parameter | Specification |
|---|---|
| Item Type | Accessory / Single-Cell Battery Holder Power Bank Case |
| Color / Finish | Black (Powder-coated matte finish aluminium body) |
| Battery Compatibility | Single 18650 Lithium-Ion Battery (Battery not included) |
| Output Power & Port | 5V DC up to 1A via Standard USB-A Port |
| Input / Charging Port | Micro-USB Port (Recharge via mobile phone charger) |
| Status Indicators | Multi-color LED Telemetry for Charging & Discharging States |
| Physical Dimensions (Diameter × Length) | 22 mm × 92 mm |
| Net Weight / Shipping Weight | 22 g / 0.03 kg |
| Shipping Dimensions | 7 cm × 2 cm × 1 cm |




































