22.5W DIY Transparent Power Bank Case for 8x 18650 Batteries

This power bank case lets you assemble your own 20,000mAh battery pack using eight 18650 cells (cells not included). Its transparent ABS-PVC body reveals internal components while a high-quality LED screen shows remaining power in real-time.

Supports up to 22.5W output with PD, QC, AFC, SCP multi-protocol charging. Features two-way PD fast charging at 20W for efficient charging and discharging, compatible with phones, laptops, and universal devices.

• Full protocol fast charging up to 22.5W output
• Two-way PD fast charging at 20W input and output
• Compatible with multiple fast charge standards (PD, QC, AFC, SCP)

Designed to house eight 18650 batteries connected in parallel. Batteries must be welded to the motherboard (not included). Appropriate welding wires are 20AWG (preferred), 18AWG, or 22AWG. Size approximately 145×41×53mm for easy portability.

• Material: durable ABS-PVC
• Colors available: Gray, Yellow, Blue
• Requires battery welding and activation before use

Transparent design allows easy inspection of internal components. Certified safe for airplane carry without declaration. Activating the power bank requires charging after battery installation to ensure proper functioning.

• Can be taken on planes without special declaration
• Activation needed after welding and initial charge
• LED display provides clear power status

• Capacity support: up to 20,000mAh (8× 18650 cells)
• Input: DC 5V/2.1A (20W)
• Output: 5V/2.1A / PD 22.5W
• Dimensions: 145×41×53 mm (5.7×1.6×2.09 in)

Includes one DIY charging case with motherboard and casing only. Batteries and charging cable are not included.

• 1× Charging case for 8× 18650 batteries (no batteries or cables)