---
product_id: 401008109
title: "EEMB Lithium Polymer battery 3.7V 250mAh 502030 Lipo Rechargeable Battery Pack with wire JST Connector for VXI Blue Parrott and MP3 MP4 Speaker-confirm device & connector polarity before purchase(4)"
brand: "eemb"
price: "₱2877"
currency: PHP
in_stock: true
reviews_count: 13
category: "Eemb"
url: https://www.desertcart.ph/products/401008109-eemb-lithium-polymer-battery-3-7v-250mah-502030-lipo-rechargeable
store_origin: PH
region: Philippines
---

# 250mAh Capacity 3.7V Voltage Multi-layer PCM Protection EEMB Lithium Polymer battery 3.7V 250mAh 502030 Lipo Rechargeable Battery Pack with wire JST Connector for VXI Blue Parrott and MP3 MP4 Speaker-confirm device & connector polarity before purchase(4)

**Brand:** eemb
**Price:** ₱2877
**Availability:** ✅ In Stock

## Summary

> 🔋 Power your essentials with precision and confidence—never settle for less!

## Quick Answers

- **What is this?** EEMB Lithium Polymer battery 3.7V 250mAh 502030 Lipo Rechargeable Battery Pack with wire JST Connector for VXI Blue Parrott and MP3 MP4 Speaker-confirm device & connector polarity before purchase(4) by eemb
- **How much does it cost?** ₱2877 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ph](https://www.desertcart.ph/products/401008109-eemb-lithium-polymer-battery-3-7v-250mah-502030-lipo-rechargeable)

## 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

- • **Reliable Long Life:** Over 400 UL-certified cycles with advanced protections against overcharge, discharge, and short circuits.
- • **Precision Power Fit:** Designed with exact 502030 size and JST connector polarity—no guesswork, no risk.
- • **Featherlight & Compact:** Only 5g and slim 20.5x32x5.3mm profile—power your devices without the bulk.
- • **Versatile Compatibility:** Perfect for Bluetooth speakers, smart home gadgets, GPS, and more—future-proof your tech arsenal.
- • **Manufacturer Direct Support:** 24-hour responsive customer care ensures you’re never left powerless.

## Overview

The EEMB Lithium Polymer 3.7V 250mAh battery pack offers a compact, lightweight power solution with advanced PCM protection for safe, long-lasting performance. Engineered with a precise JST connector and strict polarity requirements, it’s ideal for Bluetooth speakers, smart devices, and portable electronics. UL-certified and backed by responsive manufacturer support, this battery ensures reliable energy where you need it most.

## Description

Shop EEMB Lithium Polymer battery 3.7V 250mAh 502030 Lipo Rechargeable Battery Pack with wire JST Connector for VXI Blue Parrott and MP3 MP4 Speaker-confirm device & connector polarity before purchase(4). 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

- Make Sure Device Polarity Matches with Battery Pack Connector 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)
- 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.
- CERTIFICATIONS—UN 38.3 compliant. 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.
- STORAGE/APPLICATION—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. Store battery in cool and dry place./SUITABLE for Bluetooth speaker, dash cam, keyboard and mouse, Wi-Fi enabled smart home systems, PDA and digital cameras, GPS,monitoring units, e-books, tracking devices, sleep management equipment, blood oxygen tracking equipment, pulse monitors,wireless, IoT.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B08VRZTHDL |
| Batteries | 4 Lithium Polymer batteries required. (included) |
| Best Sellers Rank | 4 in Flash Battery Packs |
| Brand | EEMB |
| Customer Reviews | 4.5 4.5 out of 5 stars (1,652) |
| Date First Available | 10 Sept. 2021 |
| 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 |
| Package Dimensions L x W x H | 11.3 x 6.1 x 1.9 centimetres |
| Package Weight | 0.03 Kilograms |
| Part number | OI-MG10-GNGM |
| Product Dimensions L x W x H | 20 x 32 x 5 millimetres |
| Size | 502030 (250mAh) 4Pcs |

## Product Details

- **Battery capacity:** 250 Milliamp Hours
- **Battery cell composition:** Lithium Polymer
- **Brand:** EEMB
- **Number of batteries:** 4 Lithium Polymer batteries required. (included)

## Images

![EEMB Lithium Polymer battery 3.7V 250mAh 502030 Lipo Rechargeable Battery Pack with wire JST Connector for VXI Blue Parrott and MP3 MP4 Speaker-confirm device & connector polarity before purchase(4) - Image 1](https://m.media-amazon.com/images/I/71fds5cy6OL.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 Connector for VXI Blue Parrott and MP3 MP4 Speaker-confirm device & connector polarity before purchase(4)
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**Shop now:** [https://www.desertcart.ph/products/401008109-eemb-lithium-polymer-battery-3-7v-250mah-502030-lipo-rechargeable](https://www.desertcart.ph/products/401008109-eemb-lithium-polymer-battery-3-7v-250mah-502030-lipo-rechargeable)

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*Product available on Desertcart Philippines*
*Store origin: PH*
*Last updated: 2026-03-06*