DIY 18650 Battery Power Supply Case for Charging Devices

4.0 Β· 5 reviews
Price range: $3.26 through $3.60

Portable plastic power supply case for a single 18650 battery.

  • USB input/output 5V1A for easy device charging
  • Solder-free, simple DIY setup
  • Compatible with smartphones, tablets, gaming devices
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Estimated Delivery Time3–7 business days

Compact Power Solution for Your Devices

This DIY power supply case provides a portable and convenient way to power smartphones, tablets, headphones, and gaming devices. Crafted from durable plastic, its compact size (28x99mm) makes it easy to carry during travel, camping, or daily commutes.

Designed for simplicity, it requires no soldering, allowing you to insert your own flat top 18650 battery to create a reliable emergency power source quickly.

Easy USB Connectivity

Equipped with both USB input and output ports rated at 5V1A, this battery case supports straightforward charging and recharging through standard USB connections. An indicator light helps you monitor the charging status to ensure peace of mind.

  • USB input: 5V1A
  • USB output: 5V1A
  • Indicator light for charging status

Versatile and User-Friendly Design

Available in multiple colors, the lightweight plastic case blends functionality with style. Its user-friendly design requires no technical skills, making it ideal for hobbyists or anyone needing quick power access without complicated setups.

  • No soldering needed
  • Multiple color options
  • Lightweight and portable

Key Specifications

  • Material: Plastic
  • Size: 28 x 99 mm (1.1 x 3.9 inches)
  • Compatible battery: 18650 flat top (battery not included)

What's Included

1 DIY Power Supply Case for 18650 battery

What's in the box

  • 1 DIY Power Supply Case
Categories
Tags, , , ,
Weightβ€”
AvailabilityIn stock
SKUGA_103136

Discussion

4.0
Based on 5 reviews
Rating
D***i November 22, 2025 β˜… β˜… β˜… β˜… β˜…

cheap fully disassembled junk...

Π€***Ρ‡ November 20, 2025 β˜… β˜… β˜… β˜… β˜…

This thing only worked with a cable that allows 0.5A. It didn't get along with the original cable from the Realme phone; it shuts off after about 20 seconds both when charging and discharging (current was between 1.45 and 1.95A). In short, this box needs its own special cable.

I***v November 11, 2025 β˜… β˜… β˜… β˜… β˜…

Very slow delivery - 62 days! !

AliExpress Shopper September 26, 2025 β˜… β˜… β˜… β˜… β˜…

The size seems a bit small compared to the battery that fits inside.
Had a hard time putting it in;;;

AliExpress Shopper September 26, 2025 β˜… β˜… β˜… β˜… β˜…

The size seems a bit small compared to the battery that fits inside.
Had a hard time putting it in;;;

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