The Portable Stylish Fast-Charging Power Bank Case is a sleek, DIY-friendly enclosure that allows you to build your own high-capacity backup battery. At Electrapac, we recommend this case for users who want a professional-looking power bank with the flexibility to use high-quality, replaceable 18650 cells.

Product Overview

This is a "Solderless" DIY kit (shell and circuit board) designed to hold three 18650 lithium-ion batteries. Unlike sealed factory power banks, this case allows you to choose your own battery brand and capacity. It features a modern design with a digital power indicator and dual-input charging options, making it as stylish as it is functional.

Key Features for Electrapac Customers

• Solderless Assembly: Most versions of this "Fast-Charging Case" feature spring-loaded terminals. Simply pop your 18650 batteries in (matching the polarity) and snap the cover shut—no soldering iron required!

• Fast Charging Support: Equipped with a 2.1A output port, it can charge modern smartphones much faster than standard 1A chargers.

• Precision LCD Readout: Unlike simple LED dots, the crystal-clear LCD shows the exact battery percentage remaining, so you’re never caught with a dead power bank.

• Dual Input Versatility: Charge the power bank using your choice of a USB Type-C or Micro-USB cable, ensuring compatibility with all your existing chargers.

• Safety First: The internal PCBA (circuit board) includes protection against over-charging, over-discharging, and short circuits to keep your Electrapac batteries safe.

Assembly & Safety Guide

To ensure your DIY power bank works perfectly, follow these Electrapac tips:

1. Polarity is Critical: Look for the + and - markings inside the case. If you insert a battery backward, you may burn the circuit board instantly.

2. Use Matching Cells: For best performance, use three 18650 batteries of the same brand, age, and capacity (mAh).

3. Flat-Top vs. Button-Top: Most of these stylish cases are designed for Flat-Top 18650 cells. Ensure your batteries fit the spring length before closing the case.

4. Initial Charge: After inserting the batteries, plug the case into a wall charger for a few seconds to "activate" the logic board.

Primary Applications

• Custom High-Capacity Charger: Use three 3500mAh cells to create a powerful 10,500mAh pocket charger.

• Travel Companion: A lightweight, stylish backup for long flights or commutes.

• Eco-Friendly Power: Reuse high-quality 18650 cells harvested from old (but healthy) laptop batteries.

• Emergency Kit Gear: The built-in dual LED torch makes it an excellent addition to any blackout or emergency bag.

• Gift for Makers: An excellent entry-level project for students or hobbyists learning about portable energy.

Why Shop at Electrapac?

We source our Power Bank Cases with reinforced USB ports and high-contrast LCD screens to ensure durability and readability. At www.electrapac.com, we provide the shells and the cells that put the power back in your hands.