---
product_id: 369095658
title: "LIJIANI 18650 Power Bank Case Portable DIY Battery Pack"
brand: "lijiani"
price: "€ 43.69"
currency: EUR
in_stock: true
reviews_count: 8
category: "Lijiani"
url: https://www.desertcart.gr/products/369095658-lijiani-18650-power-bank-case-portable-diy-battery-pack
store_origin: GR
region: Greece
---

# Dual 5V/2A USB & Type-C outputs Smart LCD voltage & power display 4x 18650 battery slots LIJIANI 18650 Power Bank Case Portable DIY Battery Pack

**Brand:** lijiani
**Price:** € 43.69
**Availability:** ✅ In Stock

## Summary

> 🔌 Empower your power bank game with DIY precision and smart tech!

## Quick Answers

- **What is this?** LIJIANI 18650 Power Bank Case Portable DIY Battery Pack by lijiani
- **How much does it cost?** € 43.69 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.gr](https://www.desertcart.gr/products/369095658-lijiani-18650-power-bank-case-portable-diy-battery-pack)

## Best For

- lijiani enthusiasts

## Why This Product

- Trusted lijiani brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Compact & On-the-Go:** Lightweight, pocket-sized design with built-in flashlight for emergency readiness.
- • **Safety First, Always:** Detects bad batteries and reverse polarity to protect your investment and devices.
- • **Power Your DIY Projects:** Holds 4 standard 18650 batteries for versatile portable power on demand.
- • **Stay Informed Instantly:** Smart LCD screen shows real-time voltage, current, and battery capacity per cell.
- • **Fast & Flexible Charging:** Dual USB and Type-C ports deliver efficient 5V/2A output for multiple devices.

## Overview

The LIJIANI 18650 Power Bank Case is a portable DIY battery pack that holds four 18650 lithium-ion cells (not included) and converts them into a versatile power source. Featuring dual USB and Type-C 5V/2A outputs, a smart LCD display for real-time battery status, and safety functions like bad battery detection and reverse polarity protection, it’s designed for tech-savvy users who want customizable, on-the-go charging with a compact footprint.

## Description

desertcart.com: LIJIANI 18650 Power Bank Case Portable DIY Battery Pack | LCD display of capacity, reverse installation detection, overcharge protection. : Cell Phones & Accessories

Review: Excellent Device!!!! Very happy!!! Well worth the Money!!! - Really works great. My laptop went bad. But the battery pack was good and never had charging issue. I took the batteries out. It takes some careful tinkering and cutting. But I’m now able to use it in this device and power up a lot of things. I am very happy with the performance of this device.
Review: Versatile 18650 charger and battery bank - I have been using this for a few weeks now and find it very useful especially when charging 18650 cells, which is the primary reason i bought it. Although I have been in a pinch a couple of times now and it works as effortlessly as a portable battery bank for recharging my phone and other usb powered devices. My only dislike of it is that i am not 100% sure if it balance charges or not and after seeing some horror stories about imbalanced cells i have not been adventurous enough to put cells with different states of charge in it. But for what it is it works better than i would expect for the price.

## Features

- Multi-functional 18650 Battery Charger: Holds 4 batteries (0.7 inches in diameter, 2.56 inches in length), equipped with an LCD display showing battery voltage, current, and remaining power. Batteries can be easily removed to power other devices (NOT Included battery)
- Type-C Dual-Function Fast Charger: Compatible with 3.7V/3.6V Lithium-ion Rechargeable Batteries, features dual output ports for convenient charging (NOT Included battery)
- Dual-port Output Configuration: USB and TYPE-C ports provide 5V-2A output, long press the switch to activate the flashlight function (NOT Included battery)
- Bad Battery Detection Function: If you load a bad battery, or the battery positive and negative poles are installed backwards, no battery symbols on the LCD display, only normal batteries appear battery symbols
- Package Contents: Includes 1 M09 battery charger, 1 USB-C data cable, 1 instruction manual (Battery not included). Those unfamiliar with lithium batteries or lacking a DIY spirit should purchase with caution
- Smart LCD Display Technology: Real-time monitoring of battery status with clear digital readouts of voltage, current flow, and remaining power capacity for each battery slot
- Portable Power Bank Functionality: Converts your rechargeable 18650 batteries into a portable power source with dual USB outputs to charge smartphones, tablets, and other USB-powered devices on the go

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B094FF9P58 |
| Amperage | 2 A |
| Battery Capacity | 10000 amp_hours |
| Battery Cell Type | Lithium Ion |
| Battery Charge Time | 12 |
| Best Sellers Rank | #30,257 in Cell Phones & Accessories ( See Top 100 in Cell Phones & Accessories ) #856 in Cell Phone Portable Power Banks |
| Brand | LIJIANI |
| Color | case |
| Compatible Devices | Smartphone |
| Connector Type | Micro USB, USB Type C |
| Customer Reviews | 4.1 out of 5 stars 166 Reviews |
| Item Dimensions | 4.49 x 3.23 x 0.94 inches |
| Item Weight | 118 g |
| Manufacturer | LIJIANI |
| Maximum Output Power | 10 WATTS |
| Mfr Part Number | M09a |
| Model Number | M09 |
| Number of Batteries | Lithium Polymer batteries required. |
| Number of Ports | 2 |
| Other Special Features of the Product | Digital Display, Fast Charging, Pocket Size |
| Output Current | 2 A |
| Output Wattage | 10 watts |
| Power Source | Battery Powered,Corded Electric,Rechargeable |
| Reusability | Rechargeable |
| Special Feature | Digital Display, Fast Charging, Pocket Size |
| UPC | 754469737440 |
| Unit Count | 1 Count |
| Voltage | 5 volts |
| Warranty Description | 1 year |

## Product Details

- **Battery Capacity:** 10000 amp_hours
- **Brand:** LIJIANI
- **Color:** case
- **Connector Type:** Micro USB, USB Type C
- **Special Feature:** Digital Display, Fast Charging, Pocket Size

## Images

![LIJIANI 18650 Power Bank Case Portable DIY Battery Pack - Image 1](https://m.media-amazon.com/images/I/71Zs4972s0L.jpg)

## Questions & Answers

**Q: how long charge?**
A: Charge until all of the bars (in display window) are continuously lit up and the "in" volt should read about 5 volts  but more importantly the "in" current will read zero. The amount of time it takes to reach the fully charged state varies drastically depending on the charger you use and also the capacity of lipo batteries that are used. Mine takes a couple of hours to charge and I am using 4x 2000mah lipo batteries with a USB 2.0  2 amp basic wall charger. Hope this helps.

**Q: Will this also charge Cr 123a if you stack 2 together**
A: No it will not fit. Only 18650!

**Q: Does it charge the batteries independently? If I replace one full battery with a dead one, will it charge just the one dead battery?**
A: Yes, and you can see how full each battery is

**Q: Can this use a solar panel to charge?**
A: I dont see why it wouldn't work with solar charging

## Customer Reviews

### ⭐⭐⭐⭐⭐ Excellent Device!!!! Very happy!!! Well worth the Money!!!
*by R***N on January 23, 2026*

Really works great. My laptop went bad. But the battery pack was good and never had charging issue. I took the batteries out. It takes some careful tinkering and cutting. But I’m now able to use it in this device and power up a lot of things. I am very happy with the performance of this device.

### ⭐⭐⭐⭐⭐ Versatile 18650 charger and battery bank
*by T***E on September 25, 2023*

I have been using this for a few weeks now and find it very useful especially when charging 18650 cells, which is the primary reason i bought it. Although I have been in a pinch a couple of times now and it works as effortlessly as a portable battery bank for recharging my phone and other usb powered devices. My only dislike of it is that i am not 100% sure if it balance charges or not and after seeing some horror stories about imbalanced cells i have not been adventurous enough to put cells with different states of charge in it. But for what it is it works better than i would expect for the price.

### ⭐⭐⭐⭐ Works for my plan which isn’t easy
*by C***E on June 9, 2026*

I really like this unit for my prep plan. My flashlights (2) use 18650s and are rechargeable. I have a head lamp 18650s too. Everything is rechargeable so if my lights are charged I can swap batteries into this. If flashlights need power I pulled them from this. Also, it lets me have back up power to charge devices. Why 4 not 5 stars? I’d really a ruggedized case or even a rubber sleeve or something that would make me feel more confident that one drop I wouldn’t be SOL in a bad situation but great for the price and tons of power.

## Frequently Bought Together

- LIJIANI Battery Charger Case,Portable DIY Power Bank Box with LCD Display 2 USB Output,Micro and Type c Input, Smart Charger for 3.7v Li-ion Rechargeable Battery (Battery Not Included)
- LHIABNN DIY Power Bank - Make Your Own External Battery Pack,2 Output 3 Input (Mirco,Type C,Lighting) - Battery Not Include (Black)
- LHIABNN DIY Power Bank Box Flat Head Battery Charger Outer Case,2 USB Output Ports Plastic Shell Box with LCD Display,Micro/Phone/Type-c Input Port Power Bank Case (Black)

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**Shop now:** [https://www.desertcart.gr/products/369095658-lijiani-18650-power-bank-case-portable-diy-battery-pack](https://www.desertcart.gr/products/369095658-lijiani-18650-power-bank-case-portable-diy-battery-pack)

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*Product available on Desertcart Greece*
*Store origin: GR*
*Last updated: 2026-08-27*