---
product_id: 193561537
title: "EEMB Lithium Polymer Battery 3.7V 3700mAh 103395 Lipo Rechargeable Battery Pack with Wire JST Connector for Speaker and Wireless Device- Confirm Device & Connector Polarity Before Purchase"
brand: "eemb"
price: "€ 36.60"
currency: EUR
in_stock: true
reviews_count: 13
category: "Eemb"
url: https://www.desertcart.hr/products/193561537-eemb-lithium-polymer-battery-3-7v-3700mah-103395-lipo-rechargeable
store_origin: HR
region: Croatia
---

# 3.7V stable voltage 3700mAh high capacity PCM protection & UL certified EEMB Lithium Polymer Battery 3.7V 3700mAh 103395 Lipo Rechargeable Battery Pack with Wire JST Connector for Speaker and Wireless Device- Confirm Device & Connector Polarity Before Purchase

**Brand:** eemb
**Price:** € 36.60
**Availability:** ✅ In Stock

## Summary

> 🔋 Power your passion with precision and protection!

## Quick Answers

- **What is this?** EEMB Lithium Polymer Battery 3.7V 3700mAh 103395 Lipo Rechargeable Battery Pack with Wire JST Connector for Speaker and Wireless Device- Confirm Device & Connector Polarity Before Purchase by eemb
- **How much does it cost?** € 36.60 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/193561537-eemb-lithium-polymer-battery-3-7v-3700mah-103395-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:** Built-in PCM protection guards against overcharge, discharge, and short circuits—peace of mind included.
- • **Power That Lasts:** 3700mAh capacity fuels your devices longer—stay unplugged and unstoppable.
- • **Certified Quality:** UN 38.3 and UL certified—trusted by professionals for safe, dependable power.
- • **Precision Voltage:** 3.7V output ensures consistent, reliable performance for sensitive electronics.
- • **Compact & Lightweight:** Slim 33.5x96x10.3mm design at just 74g fits seamlessly into your tech projects.

## Overview

The EEMB Lithium Polymer Battery 3.7V 3700mAh 103395 is a high-capacity, rechargeable power source designed for wireless devices like speakers, smart home gadgets, and portable electronics. Featuring a compact form factor, built-in PCM safety protections, and UL certification, it delivers reliable, long-lasting energy with essential safeguards. Ideal for professionals and hobbyists who demand dependable performance and safety in their tech projects.

## Description

Buy EEMB Lithium Polymer Battery 3.7V 3700mAh 103395 Lipo Rechargeable Battery Pack with Wire JST Connector for Speaker and Wireless Device- Confirm Device & Connector Polarity Before Purchase: 3.7V - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

Review: Seems high quality so far. - I got this for an airsoft pistol and learned that said pistol needed higher voltage to run properly. Said pistol uses a faux extended magazine to house the battery, and this one was a reasonable fit. I'm a bit disappointed it didn't work out, but I have plans for this battery. I own and operate some 3D printers as a hobby and this battery will work great for a few LED lamp projects I have in mind, but I digress. I appreciate the fact that this battery has a built in low voltage cutoff, though I have no intention of testing it. I see a lot of folks use this for microcontroller applications though I can't comment on this battery's efficacy there. For test running LEDs with a buck converter, this battery is working great, it has a much higher capacity compared to the numerous tiny single cell Lithium batteries I have laying around, yet it's compact enough to fit in portable lights. As for the battery connector, I again can't comment. I removed the molex connector that came with this battery and soldered a Deans connector onto it's leads (after testing it on my programmable charger with the molex connector on) and I haven't had any issues. I'm very pleased with this battery, and should I ever need one like this for a future project, I'll gladly order another one.
Review: It’s a battery alright… - It’s a very long lasting battery. Got it for a project to use with Leds and stuff; it works great and lasts long

## 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.) Voltage: 3.7V; Typical capacity: 3700mAh, Min capacity: 3500mAh; Weight: approximate 74g; Size: 33.5 x 96 x 10.3mm/1.32"x3.78"x0.4" (WxLxH)
- Certifications—UN 38.3 compliant and UL certified for cell. 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, we will get back to you promptly.
- Reliable Performance—No leaking, excellent cost performance and long cycle life. PCM protection function: over charge, over discharge, over current, short circuit 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 | B08215B4KK |
| Batteries | 1 Lithium Polymer batteries required. (included) |
| Best Sellers Rank | #180,673 in Health & Household ( See Top 100 in Health & Household ) #239 in 3.7V Batteries |
| Customer Reviews | 4.4 4.4 out of 5 stars (500) |
| Date First Available | November 25, 2019 |
| Is Discontinued By Manufacturer | No |
| Item Weight | 1.41 ounces |
| Item model number | LP103395-PCM |
| Manufacturer | EEMB Co.,Ltd |
| Product Dimensions | 1.32 x 3.82 x 0.41 inches |

## Product Details

- **Battery Capacity:** 3700 Milliamp Hours
- **Battery Cell Composition:** Polymer
- **Brand:** EEMB
- **Number of Batteries:** 1 Lithium Polymer batteries required. (included)

## Images

![EEMB Lithium Polymer Battery 3.7V 3700mAh 103395 Lipo Rechargeable Battery Pack with Wire JST Connector for Speaker and Wireless Device- Confirm Device & Connector Polarity Before Purchase - Image 1](https://m.media-amazon.com/images/I/51VqHOPSfwL.jpg)

## Available Options

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

## Questions & Answers

**Q: I’m guessing the crossed polarity issue that many are reporting, stems from the JST connector’s orientation & not the wires, correct?**
A: Yes, the wires are correct polarity. Wrong location in the JST connector. I just popped the pins out of the connector and reversed them.

**Q: Will this battery replace a GSP6532100 (30) battery for a blutooth speaker?**
A: If it fits and the wire connection fits, it will work

**Q: how is this battery charged?**
A: I have a cable that came with the original battery. It has a matching connector for the battery and the other end is a standard USB that plugs into an adapter like you would use for a phone or other device.

**Q: Is it necessary to use a special charger/balancer for safety?  the battery i’m replacing is in a device that simply has a micro usb input.**
A: I went by the spec’s 
“PCM protection function: over charge, over discharge, over current, short circuit protection.”
My purpose was to have my vacuum robot last much longer!
I strung 4 of these in series to match the voltage in the robot, and then glue gunned them to the top of my Shark IQ Robot vacuum.  I got these flat packs specifically so the robot would still be able to go under furniture Then I connected in Parallel, the 4 batteries that I had in series, to the built-in four 40-60’s internal to the robot. I let the robots built-in charger do the rest. The robot went from about a 45 minute total run time to over 3 1/2 hours. It is now able to complete the whole house in one pass!  It’s set for every other day and has been successfully doing this for the last 7-9 months. Works outstandingly well. Neither battery pack gets even slightly warm. However it does take 3 times as long to charge, But it's got all night.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Seems high quality so far.
*by H***E on June 21, 2022*

I got this for an airsoft pistol and learned that said pistol needed higher voltage to run properly. Said pistol uses a faux extended magazine to house the battery, and this one was a reasonable fit. I'm a bit disappointed it didn't work out, but I have plans for this battery. I own and operate some 3D printers as a hobby and this battery will work great for a few LED lamp projects I have in mind, but I digress. I appreciate the fact that this battery has a built in low voltage cutoff, though I have no intention of testing it. I see a lot of folks use this for microcontroller applications though I can't comment on this battery's efficacy there. For test running LEDs with a buck converter, this battery is working great, it has a much higher capacity compared to the numerous tiny single cell Lithium batteries I have laying around, yet it's compact enough to fit in portable lights. As for the battery connector, I again can't comment. I removed the molex connector that came with this battery and soldered a Deans connector onto it's leads (after testing it on my programmable charger with the molex connector on) and I haven't had any issues. I'm very pleased with this battery, and should I ever need one like this for a future project, I'll gladly order another one.

### ⭐⭐⭐⭐⭐ It’s a battery alright…
*by J***E on May 8, 2025*

It’s a very long lasting battery. Got it for a project to use with Leds and stuff; it works great and lasts long

### ⭐⭐⭐⭐ Always Check polarity
*by J***A on January 18, 2026*

Check polarity first! The wires on the battery came backwards but its an easy fix, the battery is pretty powerful and has a good battery life

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*Product available on Desertcart Croatia*
*Store origin: HR*
*Last updated: 2026-03-05*