---
product_id: 561222051
title: "Bike Light 4x 18650 Battery Pack Case, Waterproof Battery Pack Case Box House Cover with Dual Interface for Cycling Bike light lamp and Mobile Phone (Black for 4)"
price: "1854010₫"
currency: VND
in_stock: true
url: https://www.desertcart.vn/products/561222051-bike-light-4x-18650-battery-pack-case-waterproof-battery-pack
store_origin: VN
region: Vietnam
---

# Bike Light 4x 18650 Battery Pack Case, Waterproof Battery Pack Case Box House Cover with Dual Interface for Cycling Bike light lamp and Mobile Phone (Black for 4)

**Price:** 1854010₫
**Availability:** ✅ In Stock

## Quick Answers

- **What is this?** Bike Light 4x 18650 Battery Pack Case, Waterproof Battery Pack Case Box House Cover with Dual Interface for Cycling Bike light lamp and Mobile Phone (Black for 4)
- **How much does it cost?** 1854010₫ with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.vn](https://www.desertcart.vn/products/561222051-bike-light-4x-18650-battery-pack-case-waterproof-battery-pack)

## Best For

- Customers looking for quality international products

## Why This Product

- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Description

Bike Light 4x 18650 Battery Pack Case, Waterproof Battery Pack Case Box House Cover with Dual Interface for Cycling Bike light lamp and Mobile Phone (Black for 4)

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Item Package Dimensions L x W x H | 4.5 x 3 x 3 inches |
| Package Weight | 0.14 Kilograms |
| Brand Name | MINCHEN |
| Country of Origin | China |
| Color | Black for 4 |
| Material | ABS, Plastic |
| Manufacturer | MINCHEN |
| Part Number | 8.4V battery case for 4x 18650 |

## Images

![Bike Light 4x 18650 Battery Pack Case, Waterproof Battery Pack Case Box House Cover with Dual Interface for Cycling Bike light lamp and Mobile Phone (Black for 4) - Image 1](https://m.media-amazon.com/images/I/61Lre5zRrFL.jpg)

## Questions & Answers

**Q: For the 5v usb, does it use a buck converter (switching) or linear step-down converter to get voltage down from 7.4v to 5v?**
A: Drive internal depressurization, USB terminal does not need external epuipment to get voltage down,can use USB Cable to charge phone directly.

**Q: Are all button type 18650 protected?**
A: Protected?
Not sure what you are asking.
I use this for road bike lights.
Unit is waterproof and controlled with positive discharge / use vis a button.

**Q: Can I use just 2 batteries? Will it still work?**
A: It's better to use at lease 4PC 18650 full charged batteries.

**Q: Does this provide continous power to 5v usb without turning off without the device drawing power like a power supply?**
A: Yes it does.   I power my night  bike lights and charge my phone at the same time.  Love it.

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**Shop now:** [https://www.desertcart.vn/products/561222051-bike-light-4x-18650-battery-pack-case-waterproof-battery-pack](https://www.desertcart.vn/products/561222051-bike-light-4x-18650-battery-pack-case-waterproof-battery-pack)

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*Product available on Desertcart Vietnam*
*Store origin: VN*
*Last updated: 2026-03-03*