---
product_id: 241026855
title: "EEMB 3.7V 502030 Battery 250mAh Lipo Battery Rechargeable Lithium Polymer Battery with JST2.0 for Nextbase Dashcam Battery Replacement-Make Sure Device Polarity Matches with Battery Before Purchase!"
brand: "eemb"
price: "₩37240"
currency: KRW
in_stock: true
reviews_count: 13
category: "Eemb"
url: https://www.desertcart.kr/products/241026855-eemb-3-7v-502030-battery-250mah-lipo-battery-rechargeable-lithium
store_origin: KR
region: South Korea
---

# 250mAh High Capacity 3.7V Voltage Power PCM Multi-layer Protection EEMB 3.7V 502030 Battery 250mAh Lipo Battery Rechargeable Lithium Polymer Battery with JST2.0 for Nextbase Dashcam Battery Replacement-Make Sure Device Polarity Matches with Battery Before Purchase!

**Brand:** eemb
**Price:** ₩37240
**Availability:** ✅ In Stock

## Summary

> 🔋 Power your essentials with precision and peace of mind!

## Quick Answers

- **What is this?** EEMB 3.7V 502030 Battery 250mAh Lipo Battery Rechargeable Lithium Polymer Battery with JST2.0 for Nextbase Dashcam Battery Replacement-Make Sure Device Polarity Matches with Battery Before Purchase! by eemb
- **How much does it cost?** ₩37240 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.kr](https://www.desertcart.kr/products/241026855-eemb-3-7v-502030-battery-250mah-lipo-battery-rechargeable-lithium)

## Best For

- eemb enthusiasts

## Why This Product

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

## Key Features

- • **Safety First:** Advanced PCM protection guards against overcharge, discharge, short circuit, and temperature spikes.
- • **Power That Lasts:** Reliable 250mAh capacity delivers consistent energy for your dash cams, smart devices, and more.
- • **Trusted & Certified:** UL-certified quality you can count on, backed by responsive manufacturer support within 24 hours.
- • **Lightweight & Compact:** At just 5g and 20x32x5mm, it’s the sleek power solution that fits seamlessly into your tech.
- • **Precision Compatibility:** Ensure perfect fit with exact battery size, connector model, and polarity—no guesswork, no risk.

## Overview

The EEMB 502030 is a UL-certified 3.7V 250mAh lithium polymer rechargeable battery designed for precise compatibility with devices like dash cams, Bluetooth speakers, and smart home gadgets. Featuring advanced PCM protection and a compact 5g form factor, it ensures safe, reliable, and long-lasting performance tailored for professional-grade electronics.

## Description

Shop EEMB 3.7V 502030 Battery 250mAh Lipo Battery Rechargeable Lithium Polymer Battery with JST2.0 for Nextbase Dashcam Battery Replacement-Make Sure Device Polarity Matches with Battery Before Purchase!. Free delivery and returns on eligible orders.

Review: This 3.7V can replace an identical 3.2V battery. - I got this 3.7V to replace an obsolete 3.2Vwhich otherwise is just the same (size and looks). I charge it with a simple USB cable that plugs into the battery and my computer. I use it to power a small electric plane (which took the 3.2V) and the plane works perfectly.
Review: Perfect Battery for the job. - Did the job with no issues.

## Features

- MUST CONFIRM BEFORE PURCHASE: 1.Battery Size; 2.Connector Model; 3.Connector Size; 4.Connector Polarity - THIS IS NOT UNIVERSAL!!! (It will cause a shortage if the polarity of the battery connector does not match your device.)
- BASIC INFO—VOLTAGE— 3.7V; Typical capacity: 250mAh, Min capacity: 230mAh; Weight: approximate 5g; Size: 20.5 x 32 x 5.3mm (WxLxH)
- CERTIFICATIONS—More than 400 EEMB batteries are UL certified. Search "MH20555" on UL for all EEMB UL certification information. MANUFACTURER DIRECT—Please contact us if you have any questions or concerns with the product via desertcart message. We will respond to you within 24 hours.
- RELIABLE PERFORMANCE—No leaking, excellent cost performance and long cycle life. PCM protection function: over charge, over discharge, over current, short circuit protection, over temperature protection. STORAGE—Keep the cells in 40%-60% charged state during long period storage. We recommend to charge the battery every 3 months after receipt of the battery and maintain the voltage 3.7-4.0V. And store the battery in cool and dry place.
- APPLICATION—Suitable for bluetooth speaker, dash cam, keyboard and mouse, Wi-Fi enabled smart home systems, PDA and digital cameras, GPS, monitoring units, notebook computers, e-books, telematics, tracking devices, sleep management equipment, blood oxygen tracking equipment, pulse monitors.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B08FD3V6TF |
| Batteries | 1 Lithium Polymer batteries required. |
| Best Sellers Rank | 4 in Flash Battery Packs 162 in Rechargeable Household Batteries |
| Brand | EEMB |
| Customer Reviews | 4.5 4.5 out of 5 stars (1,662) |
| Date First Available | 7 Aug. 2020 |
| Delivery information | We cannot deliver certain products outside mainland UK ( Details ). We will only be able to confirm if this product can be delivered to your chosen address when you enter your delivery address at checkout. |
| Guaranteed software updates until | unknown |
| Item Weight | 5 Grams |
| Item model number | LP502030-PCM |
| Package Dimensions L x W x H | 12.2 x 6.1 x 2.2 centimetres |
| Package Weight | 0.01 Kilograms |
| Part number | LP502030 |
| Product Dimensions L x W x H | 20 x 32 x 5 millimetres |
| Size | 1 |
| Warranty description | 1 |

## Product Details

- **Battery capacity:** 250 Milliampere Hour (mAh)
- **Battery cell composition:** Lithium Polymer
- **Brand:** EEMB
- **Number of batteries:** 1 Lithium Polymer batteries required.
- **Recommended uses for product:** Camera

## Images

![EEMB 3.7V 502030 Battery 250mAh Lipo Battery Rechargeable Lithium Polymer Battery with JST2.0 for Nextbase Dashcam Battery Replacement-Make Sure Device Polarity Matches with Battery Before Purchase! - Image 1](https://m.media-amazon.com/images/I/61Nl8jrzkkL.jpg)

## Available Options

This product comes in different **Size** options.

## Questions & Answers

**Q: How do I recharge the battery?**
A: Be VERY careful with this type of battery! If you do get it wrong you will have a chemical fire on your hands, that won't go out until the reaction has finished. Otherwise, the unit it is intended for will correctly charge it when fitted.

**Q: will this battery fit a Nextbase 312G Dashcam.**
A: Yes - it works on our dashcam.  There is a Youtube video by someone who shows you how to do it.  You will need a soldering iron and solder and some micro screwdrivers to do the work.

**Q: Is this battery suited to a next base 522gw**
A: Hi  - not sure about it fitting a 522gw,  fitted to mine which is a 512gw and works perfectly.

**Q: I need a 7.4 v battery for my ebook and the exact replacement is not available in the uk. can i use 2 of these in series ? will it charge correctly ?**
A: Hi, this is a li-ion battery I don't think it is suitable for charging in serial.

## Customer Reviews

### ⭐⭐⭐⭐⭐ This 3.7V can replace an identical 3.2V battery.
*by M***Z on 14 October 2025*

I got this 3.7V to replace an obsolete 3.2Vwhich otherwise is just the same (size and looks). I charge it with a simple USB cable that plugs into the battery and my computer. I use it to power a small electric plane (which took the 3.2V) and the plane works perfectly.

### ⭐⭐⭐⭐⭐ Perfect Battery for the job.
*by B***D on 4 December 2025*

Did the job with no issues.

### ⭐⭐⭐⭐ Only 1 battery but paid for 4
*by J***N on 27 January 2026*

Only received one battery when I had ordered 4. I just noticed though that it's a higher mAh one which is better. So in a way this is better. I got back money for ones not delivered so all good in the end.

## Frequently Bought Together

- EEMB Lithium Polymer Battery 3.7V 250mAh 502030 Lipo Rechargeable Battery Pack with Wire JST 2.0mm Connector for VXI Blue Parrott- Confirm Device & Connector Polarity Before Purchase
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**Shop now:** [https://www.desertcart.kr/products/241026855-eemb-3-7v-502030-battery-250mah-lipo-battery-rechargeable-lithium](https://www.desertcart.kr/products/241026855-eemb-3-7v-502030-battery-250mah-lipo-battery-rechargeable-lithium)

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*Product available on Desertcart South Korea*
*Store origin: KR*
*Last updated: 2026-03-08*