---
product_id: 422599831
title: "EEMB Lithium Polymer battery 3.7V 1100mAh 903042 Lipo Rechargeable Battery Pack with wire JST Connector-confirm device & connector polarity before purchase"
brand: "eemb"
price: "78 zł"
currency: PLN
in_stock: true
reviews_count: 13
category: "Eemb"
url: https://www.desertcart.pl/products/422599831-eemb-lithium-polymer-battery-3-7v-1100mah-903042-lipo-rechargeable
store_origin: PL
region: Poland
---

# 1100mAh Capacity 3.7V Voltage PCM Protection EEMB Lithium Polymer battery 3.7V 1100mAh 903042 Lipo Rechargeable Battery Pack with wire JST Connector-confirm device & connector polarity before purchase

**Brand:** eemb
**Price:** 78 zł
**Availability:** ✅ In Stock

## Summary

> 🔋 Power up your smart life with precision and protection!

## Quick Answers

- **What is this?** EEMB Lithium Polymer battery 3.7V 1100mAh 903042 Lipo Rechargeable Battery Pack with wire JST Connector-confirm device & connector polarity before purchase by eemb
- **How much does it cost?** 78 zł with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.pl](https://www.desertcart.pl/products/422599831-eemb-lithium-polymer-battery-3-7v-1100mah-903042-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

- • **Safety First, Always:** Built-in PCM protection guards against overcharge, over-discharge, short circuits, and overcurrent for peace of mind.
- • **Lightweight & Compact:** At just 22g and a sleek 9.4 x 30.5 x 44mm size, it fits effortlessly into your smart devices without bulk.
- • **Power That Keeps You Moving:** Reliable 3.7V voltage with a robust 1100mAh capacity ensures your devices stay energized longer.
- • **Precision Fit for Your Tech:** JST connector with strict polarity matching guarantees seamless compatibility—no surprises, just power.
- • **Certified Quality You Can Trust:** UN 38.3 compliant and UL certified, this battery meets rigorous safety and performance standards.

## Overview

The EEMB Lithium Polymer 3.7V 1100mAh rechargeable battery pack offers a compact, lightweight power solution with advanced PCM safety features. Designed for devices like Bluetooth speakers, dash cams, and IoT gadgets, it requires polarity matching for optimal use and is backed by UN and UL certifications, ensuring reliable, long-lasting performance.

## Description

EEMB Lithium Polymer battery 3.7V 1100mAh 903042 Lipo Rechargeable Battery Pack with wire JST Connector-confirm device & connector polarity before purchase: desertcart.co.uk: Electronics & Photo

Review: Great battery unit - Easy to install works well and delivers all of the power I need for my RC boat. Charges up well and it was well packaged and delivered in a good time and at a great price.
Review: Pervez - I received it the following day. It was easy to fit and it came with a leaflet with other batteries and dimensions.

## 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: 900mAh; Weight: approximate 22g; Size: 9.4 x 30.5 x 44mm(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.//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 | B09DPPTGGJ |
| Batteries | 1 Lithium Polymer batteries required. (included) |
| Best Sellers Rank | 9,153 in Electronics & Photo ( See Top 100 in Electronics & Photo ) 231 in Rechargeable Household Batteries |
| Brand | EEMB |
| Colour | Blue |
| Customer Reviews | 4.3 4.3 out of 5 stars (792) |
| Date First Available | 27 Aug. 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 |
| Included components | Lithium Polymer |
| Item Weight | 30 Grams |
| Item model number | LP903042-PCM |
| Package Dimensions L x W x H | 11.2 x 6.1 x 1.9 centimetres |
| Package Weight | 0.03 Kilograms |
| Part number | LP903042 |
| Product Dimensions L x W x H | 6 x 1.8 x 12.5 centimetres |
| Size | 903042 (1100mAh) |

## Product Details

- **Battery capacity:** 1100
- **Battery cell composition:** Lithium Polymer
- **Brand:** EEMB
- **Number of batteries:** 1 Lithium Polymer batteries required. (included)
- **Recommended uses for product:** Speaker

## Images

![EEMB Lithium Polymer battery 3.7V 1100mAh 903042 Lipo Rechargeable Battery Pack with wire JST Connector-confirm device & connector polarity before purchase - Image 1](https://m.media-amazon.com/images/I/61J2siYLGML.jpg)
![EEMB Lithium Polymer battery 3.7V 1100mAh 903042 Lipo Rechargeable Battery Pack with wire JST Connector-confirm device & connector polarity before purchase - Image 2](https://m.media-amazon.com/images/I/61hA-lQJ1eL.jpg)
![EEMB Lithium Polymer battery 3.7V 1100mAh 903042 Lipo Rechargeable Battery Pack with wire JST Connector-confirm device & connector polarity before purchase - Image 3](https://m.media-amazon.com/images/I/61i7R8NGvmL.jpg)
![EEMB Lithium Polymer battery 3.7V 1100mAh 903042 Lipo Rechargeable Battery Pack with wire JST Connector-confirm device & connector polarity before purchase - Image 4](https://m.media-amazon.com/images/I/61lSunFiU5L.jpg)
![EEMB Lithium Polymer battery 3.7V 1100mAh 903042 Lipo Rechargeable Battery Pack with wire JST Connector-confirm device & connector polarity before purchase - Image 5](https://m.media-amazon.com/images/I/61ndOpzg33L.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great battery unit
*by D***R on 9 October 2023*

Easy to install works well and delivers all of the power I need for my RC boat. Charges up well and it was well packaged and delivered in a good time and at a great price.

### ⭐⭐⭐⭐⭐ Pervez
*by S***N on 17 January 2026*

I received it the following day. It was easy to fit and it came with a leaflet with other batteries and dimensions.

### ⭐⭐⭐⭐⭐ Good battery so far
*by J***. on 20 November 2024*

Although the capacity was the same as my previous one it was much larger but thankfully still fitted into my dash cam (just). So far, very pleased.

## Frequently Bought Together

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*Product available on Desertcart Poland*
*Store origin: PL*
*Last updated: 2026-01-26*