20W PD Fast Charging 21700 DIY Power Bank Case with Detachable Cables (Bare Case)

Take control of your portable power with this DIY 21700 Power Bank Shell Enclosure. Designed for tech enthusiasts, travelers, and daily commuters, this customizable power bank kit lets you build a high-performance external battery setup using your preferred flat-top 21700 lithium-ion cells.

Lightning-Fast PD 20W Charging Stop waiting around for your devices to juice up. Equipped with Power Delivery (PD) 20W fast-charging technology, this shell efficiently powers up smartphones, tablets, handheld consoles, and Bluetooth accessories in a fraction of the time compared to standard 5V/1A chargers.

Integrated & Detachable Cable Design Never worry about forgetting a charging cord again. This innovative DIY enclosure features a built-in detachable cable, offering seamless portability. Keep the cord neatly snapped into the frame for sleek everyday carry, or detach it when you need extra flexibility while operating your phone on the go.

Easy Tool-Free Assembly Building your custom portable charger requires zero technical expertise. Featuring a toolless, solder-free snap assembly, you simply insert your high-capacity 21700 battery cells into the secure slots, snap the outer shell together, and start charging. Replace old or worn-out cells anytime without tossing out the entire power bank housing.

Advanced Safety & Intelligent LED Displays Safety is paramount when handling high-density lithium batteries. The integrated PCB board features multi-protection circuitry against overcharging, over-discharging, short circuits, and overheating. Clear LED indicator lights keep you constantly informed of your remaining capacity and active fast-charging status.

• Battery Type: Compatible with 21700 Li-ion batteries

• Output: PD 20W Fast Charging

• Features: Detachable integrated cable, solder-free design, LED battery status

• Note: This item is an empty enclosure kit only. 21700 batteries are NOT included and must be purchased separately.