The L12 power bank case is a functional power bank case, specially designed to create a powerful DIY power bank based on lithium-ion batteries. The case is designed to install 12 18650 batteries, which allows you to get a significant energy reserve for long-term battery life.
Due to its compact size and thoughtful design, the 12 18650 battery case is convenient to carry in a backpack or bag. This is an ideal solution for traveling, camping, business trips and situations where reliable backup power is needed.
The L12 case is equipped with modern electronics and a built-in L12 power bank board, which ensures stable operation, battery protection and fast charging support.
Working principle:
12 batteries (not included) are installed in the 18650 case, after which the device turns into a full-fledged DIY power bank. The built-in control board is responsible for balancing, overload protection, short circuit protection, and stable voltage supply.
Through the output ports, the case supplies power to connected devices, and the power bank itself is charged via a Type-C case or Micro-USB case.
Advantages:
- 🔋 Power bank case for 12 18650 batteries — large capacity reserve
- ⚡ QC3.0 power bank case — fast charging support
- 🚀 Power up to 22.5W — 22.5W power bank case
- 🔌 2 USB case — charging two devices simultaneously
- 🔄 Type-C case — power input and output
- 🔁 Micro-USB case — alternative charging input
- 📱 Compatible with smartphones, tablets, headphones and other USB devices
- 🎒 Convenient format for travel and everyday use
Features:
| Product type: | Power bank case |
| Model: | L12 |
| Number of batteries: | 12 × 18650 |
| Battery type: | Li-ion 18650 (not included) |
| Output ports: | 2 × USB |
| Input ports: | Type-C, Micro-USB |
| Fast charging: | QC3.0 |
| Maximum power: | 22.5 W |
| Control board: | L12 power bank board |
Application:
- ✈ Travel and outdoor activities
- 🏕 Tourism and camping
- 🚗 Backup power on the go
- 🏠 DIY home power bank
- 🔌 Charging devices without access to the network
⚠ Please note: 18650 batteries are not included and must be purchased separately.
🔥 Why choose the L12 case?
- 💪 Powerful case for power bank with QC3.0
- ⚡ Fast charging up to 22.5W
- 🔒 Reliable protection board
- 🧰 The perfect solution for DIY creation power bank
The L12 power bank case is the best choice for those who want to assemble their own powerful and reliable 18650 power bank.
WST is a store where people don't buy by chance, but come back again.
Order the L12 case now and create your own powerful DIY power bank for your needs.
Tags: power bank case, 18650 batteries, L12, USB, Micro-USB, Type-C, Quick Charge 3.0, QC3.0, portable charging














