DIY Power Bank

Build your own portable charger with this DIY No-Solder Power Bank Case, designed to house 3x18650 batteries for reliable on-the-go power. Compact at just 40g with a simple welding-free assembly — perfect for beginners and DIY enthusiasts alike. Available in 4 colors to match your style.

$21.54 $21.54 0% OFF

Color

DIY Power Bank

Free Shipping
On orders over $50

30-Day Returns
Easy return process

Dedicated Support
We're here to help

Secure Checkout
Safe & encrypted payments

Overview Specification Whats' In Box FAQ's Reviews

DIY Power Bank -- Overview

Build your own portable power source with the DIY Welding-Free Battery Box, a compact power bank enclosure designed to hold up to 3 × 18650 batteries without requiring traditional welding.

Its simple nesting-style battery installation makes it convenient for DIY enthusiasts who want to assemble a custom portable charging solution. With 5V/1A input and 5V/1A output, the battery box is designed for basic portable charging applications.

The lightweight 40g body and compact dimensions make it easy to carry for travel, camping, emergencies, or everyday backup power needs.

Key Features

3 × 18650 Battery Support: Designed to accommodate three compatible 18650 batteries.
Welding-Free Assembly: Allows battery installation without traditional spot welding.
DIY Design: Suitable for users who want to build their own portable power bank.
5V/1A Output: Designed to provide standard 5V/1A charging output.
5V/1A Input: Supports 5V/1A input for charging the power bank system.
Compact & Lightweight: Measures only 22 × 65 × 98mm and weighs approximately 40g.
Portable: Convenient for travel, camping, emergency backup, and everyday use.
Multiple Colors: Available in Black, White, Pink, and Sky Blue.
Easy Battery Installation: Welding-free nesting design simplifies assembly.
Reusable DIY Solution: Compatible battery cells can be replaced when properly installed.

DIY Power Bank -- Specification

Product Type: DIY Power Bank Battery Box
Battery Compatibility: 18650 Batteries
Battery Quantity: Up to 3 × 18650
Assembly: Welding-Free
Input: 5V / 1A
Output: 5V / 1A
Dimensions: 22 × 65 × 98mm
Weight: Approx. 40g
Material: Plastic Housing
Available Colors: Black / White / Pink / Sky Blue
Design: Portable & Compact
Application: DIY Power Bank / Portable Charging

DIY Power Bank -- Whats' In Box

1 × DIY Battery Box / Power Bank Case

Important: The provided product information describes the battery box/case only. 18650 batteries are not listed as included and should be purchased separately unless your selected variant specifically includes them.

DIY Power Bank -- FAQ's

Does this power bank include 18650 batteries?

No. The provided package information lists the battery box only . Check the selected product option before ordering.

How many batteries does it support?

The battery box is designed to accommodate up to 3 × 18650 batteries .

Does battery installation require welding?

No. The product uses a welding-free nesting design , allowing compatible batteries to be installed without traditional welding.

What is the input specification?

The stated input is 5V / 1A .

What is the output specification?

The stated output is 5V / 1A .

Is it ready to use when I receive it?

It is a DIY battery box , so compatible 18650 batteries need to be installed before it can be used as a power source.

What size is the battery box?

The dimensions are approximately 22 × 65 × 98mm .

How much does it weigh?

The battery box weighs approximately 40g , excluding batteries.

What colors are available?

It is available in Black, White, Pink, and Sky Blue .

Can I replace the batteries?

The design allows compatible 18650 cells to be installed or replaced, provided they meet the product's requirements.

Is it suitable for beginners?

Yes. Its welding-free assembly is designed to make DIY battery installation simpler than traditional welded battery packs. However, users should have a basic understanding of rechargeable lithium-ion batteries before assembly.

Can I use any 18650 battery?

Use only compatible, properly rated 18650 rechargeable cells that meet the battery box's specifications. Do not mix incompatible cells, different capacities, damaged cells, or cells with different charge levels.

Safety Note: 18650 lithium-ion batteries can be hazardous if incorrectly installed, short-circuited, damaged, overcharged, or improperly handled. Never use damaged or swollen cells. Confirm battery polarity before installation and follow the manufacturer's charging and safety instructions.