This Power bank box/case needs 1PCS 18650 rechargeable battery. If you install a 2600mAh/3100mAh 18650 rechargeable battery, the capacity of power bank will be 2600mAh/3100mAh

Compatible with: USB charging mobile phones and electronic devices.

New rechargeable battery, no memory, more than 500 circle time.
Built with IC chip to protect your devices from short circuit, overcharge.
Equip with strap, easy to carry.
Quantity: 1PC
Color: Black, Blue, Yellow, Pink, White, Green
Charger only, battery not included.

Size:96*24*23mm

Package included:
1 x Portable Power Bank 18650 External Backup Battery Charger
1 x Key Chain