---
product_id: 244034199
title: "EEMB Lithium Polymer battery 3.7V 1100mAh 603449 Lipo Rechargeable Battery Pack with wire JST Connector-confirm device & connector polarity before purchase"
brand: "eemb"
price: "$U855"
currency: UYU
in_stock: true
reviews_count: 13
category: "Eemb"
url: https://www.desertcart.uy/products/244034199-eemb-lithium-polymer-battery-3-7v-1100mah-603449-lipo-rechargeable
store_origin: UY
region: Uruguay
---

# 1100mAh Capacity 3.7V Voltage PCM Protection EEMB Lithium Polymer battery 3.7V 1100mAh 603449 Lipo Rechargeable Battery Pack with wire JST Connector-confirm device & connector polarity before purchase

**Brand:** eemb
**Price:** $U855
**Availability:** ✅ In Stock

## Summary

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

## Quick Answers

- **What is this?** EEMB Lithium Polymer battery 3.7V 1100mAh 603449 Lipo Rechargeable Battery Pack with wire JST Connector-confirm device & connector polarity before purchase by eemb
- **How much does it cost?** $U855 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.uy](https://www.desertcart.uy/products/244034199-eemb-lithium-polymer-battery-3-7v-1100mah-603449-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

- • **Long-Lasting Charge:** 1100mAh capacity delivers reliable, extended battery life for your essential gadgets.
- • **Precision Power Fit:** Ensure perfect device & connector polarity match to avoid short circuits and maximize performance.
- • **Advanced Safety Tech:** Built-in PCM protection guards against overcharge, over-discharge, short circuit, and overcurrent.
- • **Compact & Lightweight:** Slim 34x51x6mm design weighing just 22g fits seamlessly into portable devices.
- • **Certified Quality Assurance:** UN 38.3 compliant and UL certified for trusted, professional-grade reliability.

## Overview

The EEMB Lithium Polymer Battery 3.7V 1100mAh 603449 is a compact, lightweight rechargeable power source designed for Bluetooth speakers, smart home devices, and portable electronics. Featuring advanced PCM protection and UL certification, it ensures safe, long-lasting performance. Perfect for professionals who demand reliability and precision in their tech accessories.

## Description

Free delivery and returns on eligible orders. Buy EEMB Lithium Polymer battery 3.7V 1100mAh 603449 Lipo Rechargeable Battery Pack with wire JST Connector-confirm device & connector polarity before purchase at desertcart UK.

Review: Fixed my problem - Purchased to replace a dead battery in a mini bluetooth keyboard and it now works perfectly 👍
Review: Quality weighted batteries! - You could tell the quality in this battery straight away the weight is heavier than cheaper none brand ones I bought and this holds the charge way better. I say cheaper this was about the same price as the other one... tge quality was just a cheaper knock off china tat. Highly recomend this company and there batteries and will defo be using them for every purchase in tge future! I'm just happy that I have finally found a company and I dont have to keep searching throuvh the minefield of pot luck.

## 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: 1100mAh, Min capacity: 1000mAh; Weight: approximate 22g; Size: MAX 34.5 x MAX 51 x MAX 6.3mm (WxLxH)
- RELIABLE PERFORMANCE—No leaking, excellent cost performance and long cycle life. PCM protection function: over charge, over discharge, over current, short circuit protection.
- CERTIFICATIONS—UN 38.3 compliant. More than 400 EEMB batteries are UL certified. Search "MH20555" on UL for all EEMB UL certification information.//QUALITY SERVICE— Please contact us if you have any questions or concerns with the product via desertcart message.
- 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 | B08FD39Y5R |
| Batteries | 1 Lithium Polymer batteries required. (included) |
| Best Sellers Rank | 3,113 in Electronics & Photo ( See Top 100 in Electronics & Photo ) 71 in Rechargeable Household Batteries |
| Brand | EEMB |
| Customer Reviews | 4.4 4.4 out of 5 stars (1,278) |
| 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 | 0.03 Kilograms |
| Item model number | LP603449-PCM |
| Package Dimensions L x W x H | 12.4 x 6.1 x 2.2 centimetres |
| Package Weight | 0.03 Kilograms |
| Part number | LP603449 |
| Product Dimensions L x W x H | 34 x 51 x 6 millimetres |
| Size | 1 |

## Product Details

- **Battery capacity:** 1100 Milliampere Hour (mAh)
- **Battery cell composition:** Lithium Polymer
- **Brand:** EEMB
- **Number of batteries:** 1 Lithium Polymer batteries required. (included)

## Images

![EEMB Lithium Polymer battery 3.7V 1100mAh 603449 Lipo Rechargeable Battery Pack with wire JST Connector-confirm device & connector polarity before purchase - Image 1](https://m.media-amazon.com/images/I/61G3iBkm0AL.jpg)

## Available Options

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

## Questions & Answers

**Q: Is the contact labelled t useful for an ntc thermistor wire?**
A: Not seen a contact T

**Q: will this fit a  sena 20s, & is it just a case of swapping the connectors on the battery to match the polarity on the system board (no soldiering need**
A: Not sure, but Google shows that Sena 20s is using 2540 battery (25x40x7.5 mm) . This one may be too big. You need to measure the space first.

**Q: What is the connector? i bought this and the jst connector does not fit the jst connectors i have, so what is that connector ???**
A: It is JST PH (2mm pitch).  There is 12 types of JST connectors listed on Wiki.

**Q: Can i cut the connection off so i can solder it to a circuit? if so which do i cut first?**
A: Cut one connection at a time, do NOT cut through both at the same time…
if you short them together they may weld together and then proceed to burn.
If you do cause a fire don’t use water, use sand, dry soil to smother the battery.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Fixed my problem
*by N***A on 19 January 2026*

Purchased to replace a dead battery in a mini bluetooth keyboard and it now works perfectly 👍

### ⭐⭐⭐⭐⭐ Quality weighted batteries!
*by S***. on 5 May 2025*

You could tell the quality in this battery straight away the weight is heavier than cheaper none brand ones I bought and this holds the charge way better. I say cheaper this was about the same price as the other one... tge quality was just a cheaper knock off china tat. Highly recomend this company and there batteries and will defo be using them for every purchase in tge future! I'm just happy that I have finally found a company and I dont have to keep searching throuvh the minefield of pot luck.

### ⭐⭐⭐⭐ Does not fit Acaia scales as descrbed
*by J***Y on 13 February 2025*

Bought this as the specs matched the battery in my Acaia coffee scales and the description said it was suitable for them, but the connector is the wrong size; the Acaia use a smaller connector. I swapped the connector over from the old battery was a bit of a hassle. Otherwise the battery seems good, no issues with it so far. A relatively cheap way to get your scales working again.

## Frequently Bought Together

- EEMB Lithium Polymer Battery 3.7V 1100mAh 603449 Lipo Rechargeable Battery with Wire JST 2.0mm Connector for Speaker and Wireless Device- Confirm Device & Connector Polarity Before Purchase
- HiLetgo 3pcs TP4056 Type-c USB 5V 1A 18650 Lithium Battery Charger Module Charging Board with Dual Protection Functions
- elechawk 10pcs Upgraded Tiny Whoop JST-PH 2.0 Male and Female Connector Cable for Battery JJRC H36 H67 Blade Inductrix E010 E013

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.uy/products/244034199-eemb-lithium-polymer-battery-3-7v-1100mah-603449-lipo-rechargeable](https://www.desertcart.uy/products/244034199-eemb-lithium-polymer-battery-3-7v-1100mah-603449-lipo-rechargeable)

---

*Product available on Desertcart Uruguay*
*Store origin: UY*
*Last updated: 2026-02-10*