🔋 6-Slot 18650 Battery Power Bank Box – Dual USB & Type-C DIY Charger Case

Build your own portable charger with the 6-Slot 18650 Battery Power Bank Box. This DIY charging case holds up to six flat-top 18650 rechargeable batteries (not included) and lets you create a reusable power bank for travel, camping, work, or emergency backup.

Moreover, the compact design is easy to carry. The built-in camping light adds extra convenience when you're outdoors or during power outages. Instead of buying a fixed-capacity power bank, you can replace the batteries whenever needed and continue using the same case.

🔋 DIY Battery Power Solution

This battery storage box is designed for users who want a flexible charging solution. Simply install compatible 18650 flat-top batteries, activate the power bank, and start charging your devices.

In addition, the reusable design helps reduce waste because you can replace worn batteries instead of replacing the entire power bank.

⚡ Dual USB and Type-C Charging

The charging case includes USB outputs for powering compatible devices and a USB Type-C input for recharging the battery pack.

As a result, it works well with smartphones, tablets, wireless earbuds, Bluetooth speakers, USB lights, portable fans, and many other USB-powered devices.

💡 Built-In Camping Light

The integrated camping light provides helpful illumination for outdoor trips, emergencies, and nighttime activities.

Furthermore, it can serve as a backup light during power failures or while camping.

✨ Key Features

• Holds up to six flat-top 18650 rechargeable batteries

• Batteries are not included

• Dual USB charging outputs

• USB Type-C charging input

• Built-in camping light

• Welding-free battery installation

• Reusable DIY power bank design

• Compact and lightweight

• Easy battery replacement

📋 How to Install the Batteries

1. Open the battery case.

2. Insert six flat-top 18650 rechargeable batteries.

3. Match the + and − markings correctly.

4. Make sure every battery fits securely.

5. Close the case firmly before charging.

For the best performance, use batteries from the same brand with the same capacity and condition. Do not mix different batteries because this may reduce performance or damage the power bank.

🔌 First-Time Activation

Before using the power bank for the first time:

1. Connect a USB Type-C charging cable.

2. Plug it into a 5V/3A or higher USB charger.

3. Charge the power bank for 30–60 minutes.

4. Disconnect the charger after activation.

5. Your power bank is now ready to charge other devices.

This first charge activates the internal charging circuit.

📦 Package Includes

• 1 × 6-Slot 18650 Battery Power Bank Box

• 1 × Built-in Camping Light

• 1 × User Manual

Note: Rechargeable 18650 batteries and the USB Type-C charging cable are not included.

💙 Why Choose This DIY Power Bank Case?

This reusable battery case gives you more flexibility than many standard power banks. Moreover, you can replace the batteries whenever needed instead of replacing the entire unit. Therefore, it is a practical choice for camping, travel, emergency kits, and everyday backup power.

Finally, its compact size, dual USB charging ports, Type-C input, and built-in camping light make it a useful accessory for home, work, and outdoor adventures.