10-8 Slot 18650 Battery Holder Power Bank Case DIY Shell

This DIY power bank case supports up to 8 flat 18650 batteries, designed specifically for reliable power storage and charging. It’s compatible with various smartphone brands including iPhone, Xiaomi, and Huawei.

Equipped with a dual USB Type-C charger output, it enables fast, dual-device charging with a maximum output of 5V-2.1A.

An integrated LCD screen provides real-time monitoring of battery status and charge level to keep you informed and in control.

This feature helps prevent overcharging and indicates virtual power adjustments after initial charge cycles.

Features an intelligent input control system that optimizes charging efficiency and protects the batteries.

Compatible only with flat 18650 batteries (non-flashlight type) operating within 3.2V-4.2V voltage range.

• Dual USB output ports for simultaneous device charging
• Supports flat-type 18650 batteries only
• Requires correct polarity placement to function properly

Measuring 172mm x 80mm x 23mm, this power bank case offers portability with solid build quality.

Includes two-hand electric light function activated by double-click, for convenience in low light environments.

• Battery slots: 8 flat 18650 (battery not included)
• Maximum power output: 5V-2.1A
• Dimensions: 172 x 80 x 23 mm
• Charging ports: Dual USB Type-C
• Battery voltage range: 3.2-4.2V

Includes one DIY battery power bank case; batteries are not included.