---
product_id: 193561537
title: "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: "169 Lei"
currency: RON
in_stock: true
reviews_count: 8
category: "Eemb"
url: https://www.desertcart.ro/products/193561537-lithium-polymer-battery-3-7v-3700mah-103395-lipo-rechargeable-battery
store_origin: RO
region: Romania
---

# 3.7V stable voltage 3700mAh high capacity UL & UN 38.3 certified safety 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:** 169 Lei
**Availability:** ✅ In Stock

## Summary

> 🔋 Power your projects with confidence and never miss a beat!

## Quick Answers

- **What is this?** 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?** 169 Lei with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ro](https://www.desertcart.ro/products/193561537-lithium-polymer-battery-3-7v-3700mah-103395-lipo-rechargeable-battery)

## 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

- • **Power That Lasts:** High 3700mAh capacity fuels your devices longer, so you stay unplugged and unstoppable.
- • **Certified Reliability:** UL and UN 38.3 certifications mean trusted quality and peace of mind for your critical tech.
- • **Lightweight & Compact:** Slim 33.5x96x10.3mm form factor and just 74g—perfect for sleek, portable setups without bulk.
- • **Versatile Compatibility:** Ideal for Bluetooth speakers, dash cams, smart home devices, and all your wireless essentials.
- • **Precision Fit & Protection:** Designed with exact connector polarity and size—avoid costly shorts and keep your gear safe with built-in PCM safeguards.

## Overview

The EEMB Lithium Polymer Battery delivers a robust 3.7V and 3700mAh capacity in a compact, lightweight design. Engineered with precise connector polarity and UL/UN 38.3 certifications, it ensures safe, reliable performance for a wide range of wireless devices including speakers, dash cams, and smart home gadgets. Built-in PCM protection guards against overcharge, discharge, and short circuits, making it a trusted power source for professionals and hobbyists alike.

## 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 |
| Amperage | 40 Milliamps |
| Antenna Location | Adafruit charger, Alarm, Arduino board, Bluetooth speaker, Dashcam, GPS, LED Light, Radio, Remote controller, Wireless keyboard, micro controller |
| Battery Capacity | 3700 Milliamp Hours |
| Battery Cell Composition | Polymer |
| Battery Cell Type | Polymer |
| Battery Weight | 70 Grams |
| Best Sellers Rank | #181,267 in Health & Household ( See Top 100 in Health & Household ) #291 in 3.7V Batteries |
| Brand | EEMB |
| Customer Reviews | 4.4 out of 5 stars 495 Reviews |
| Item Dimensions | 1.32 x 3.82 x 0.41 inches |
| Item Weight | 0.04 Kilograms |
| Manufacturer | EEMB Co.,Ltd |
| Model Name | LP103395 |
| Model Number | LP103395-PCM |
| Number of Batteries | 1 Lithium Polymer batteries required. (included) |
| Recommended Uses For Product | Adafruit charger, Alarm, Arduino board, Bluetooth speaker, Dashcam, GPS, LED Light, Radio, Remote controller, Wireless keyboard, micro controller Recommended Uses For Product Adafruit charger, Alarm, Arduino board, Bluetooth speaker, Dashcam, GPS, LED Light, Radio, Remote controller, Wireless keyboard, micro controller See more |
| Reusability | Rechargeable |
| Unit Count | 1.0 Count |
| Voltage | 3.7 Volts |

## Product Details

- **Number of Batteries:** 1 Lithium Polymer batteries required. (included)
- **Brand:** EEMB
- **Battery Cell Composition:** Polymer
- **Battery Capacity:** 3700 Milliamp Hours
- **Recommended Uses For Product:** Adafruit charger, Alarm, Arduino board, Bluetooth speaker, Dashcam, GPS, LED Light, Radio, Remote controller, Wireless keyboard, micro controller

## Images

![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 Romania*
*Store origin: RO*
*Last updated: 2026-02-01*