DIY Shell 21700 Battery Holder Power Bank Case is a compact, versatile storage and charging solution for users who prefer building their own power bank. Designed to accommodate 21700 cells, this case includes a Type-C charging port and organized compartments to hold and secure batteries and small accessories. Its durable construction protects cells during transport and everyday use while keeping everything neatly arranged for easy access.
Ideal for hobbyists and DIY enthusiasts, the lightweight design slips into bags or pockets and supports quick assembly into a portable charger with your chosen components. The minimalist exterior keeps the look clean and functional, suitable for iPhone, Xiaomi, and other mobile devices when paired with compatible circuitry and batteries.
Highlights:
– Fits 21700 batteries
– Integrated Type-C port for charging
– Compact, organized storage design
– Durable protective shell
– Suitable for DIY power bank projects
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