12-Slot 21700 Battery Power Box – No-Solder Outdoor Case
12-Slot 21700 Battery Power Box – No-Solder Outdoor Case
12-Slot 21700 Battery Power Box – High Capacity, No-Solder Assembly
Power your outdoor adventures with confidence using this 12-Slot 21700 Battery Power Box. Designed for campers, hikers, and outdoor enthusiasts, this compact ABS battery case holds up to 12 × 21700 cells and features USB output ports so you can keep your phones, headlamps, and camping lights charged — no soldering, no special tools required.
Made in Mainland China.
Key Features
- 12 Independent Battery Slots – Each compartment is isolated to prevent short circuits and ensure stable performance.
- Tool-Free, No-Solder Assembly – Snap together in minutes; perfect for beginners and experienced outdoor users alike.
- USB-A & USB-C Output Ports – Supports fast charging (up to 22.5W) to power smartphones and other devices on the go.
- Optional Wireless Charging – Available in Standard 10W, 22.5W Fast Charge, and 22.5W + 15W Wireless Charging variants.
- Multi-Layer Protection – Built-in safeguards against overcharge, over-discharge, and short circuits for secure, reliable operation.
- Durable ABS Shell – Lightweight yet rugged; anti-slip surface for confident grip in all outdoor conditions.
- Reusable & Versatile – Compatible with all standard 21700 lithium cells (batteries not included).
Specifications
| Material | ABS Plastic |
| Colors | Black, White |
| Battery Compatibility | 21700 (12 slots) |
| USB-A Output | 5V/3A · 9V/2A · 12V/1.5A · 10V/2.25A |
| USB-C Output | 5V/3A · 9V/2.2A · 12V/1.67A · 10V/2.25A |
| USB-C Input | 5V/3A · 9V/2A · 12V/1.5A |
| Dimensions | Approx. 164 × 85 × 52 mm |
| Batteries Included | No |
| Charger Included | No |
What's in the Box
- 1 × 12-Slot 21700 Battery Power Box
Note: Please allow ±1–2 cm measurement tolerance and slight color variation due to screen display differences.
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Frequently Asked Questions
Q: Do the 21700 batteries or a charger come included with this power box?
A: No — this 12-slot 21700 battery power box is the case only. You will need to source your own 21700 lithium cells and a compatible charger separately. The box is designed to work with any standard 21700 format batteries.
Q: Is soldering required to assemble this battery case?
A: Not at all. This battery power box is specifically engineered for tool-free, no-solder assembly. Simply insert your 21700 cells into the 12 independent slots and connect the USB output — ideal for beginners and anyone who prefers a hassle-free setup.
Q: What devices can I charge using the USB ports on this power box?
A: The USB-A and USB-C output ports support a wide range of devices including smartphones, portable fans, LED camping lights, headlamps, and other USB-powered accessories. Fast-charging variants support up to 22.5W output, and the wireless charging version adds 15W Qi-compatible wireless power delivery.
Q: Is this battery case safe to use outdoors?
A: Yes. The ABS shell is lightweight, durable, and features an anti-slip finish. The case includes multi-layer electronic protection against overcharge, over-discharge, and short circuits. Each of the 12 slots is independently isolated to further enhance safety during outdoor use.
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.