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Portable DIY Power Bank Case
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- Description
Build your own high-capacity portable charger with this DIY external power bank case. Designed for 6×18650 lithium batteries (not included), this shell can deliver up to 20,000 mAh depending on your chosen cells. Ideal for travel, camping, or emergency backup, it offers multiple USB ports for fast and safe charging. Compact, durable, and easy to assemble — perfect for tech enthusiasts and everyday users alike.