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Specification
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Product Type: Power Bank DIY Kit
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Item Type: DIY Box & Shell
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Model: DIY 18650 Power Bank Case
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Feature: Power Bank DIY Kit
Product Description
This product is a weld-free DIY power bank case (circuit board + shell only).
It is not a finished power bank and does not include batteries.
Designed for users who want a customizable and portable power solution using 18650 batteries.
⚠️ Important Notes
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Batteries are not included. Please use 3 × 18650 flat-head batteries.
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All three batteries must have the same capacity.
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Do not insert batteries in reverse, as this may damage the circuit board
(metal plate = positive, spring = negative). -
Install carefully — the shell cannot be opened more than once.
Features
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Large Capacity Design: Compact size with support for high power storage
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Dual Input & Output: Micro USB + Type-C input / Dual USB output
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LED Flashlight: Built-in dual LED flashlight, double-click to turn on/off
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Digital Power Display: LED screen shows real-time battery level
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Fast Charging: Charge two devices simultaneously
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No Soldering Required: Simply insert batteries and use
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Stylish & Durable: Mirror-finish design, lightweight and easy to carry
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Wide Compatibility: Suitable for smartphones, tablets, headphones, and more
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Multi-Scenario Use: Ideal for travel, outdoor activities, daily use, and school
Technical Specifications
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Input:
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Micro USB: DC 5V / 2A
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Type-C: DC 5V / 2A
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Output:
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USB: DC 5V / 2A
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Battery Type: 18650 (Flat Head)
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Battery Capacity: 3 Cells
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Material: ABS
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Color: Black
Size & Weight
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Dimensions: 8.75 × 7.6 × 2.4 cm
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Weight: 50–60 g (depending on version)Package Includes
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1 × DIY 18650 Power Bank Case
(Batteries not included)