--- 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: "249.65 DT" currency: TND in_stock: true reviews_count: 7 category: "Eemb" url: https://www.desertcart.tn/products/401008109-eemb-lithium-polymer-battery-3-7v-250mah-502030-lipo-rechargeable store_origin: TN region: Tunisia --- # 250mAh High Capacity 3.7V Voltage Power JST Connector Precision 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:** 249.65 DT **Availability:** ✅ In Stock ## Summary > 🔋 Power up your tech with precision and safety—never miss a beat! ## 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?** 249.65 DT with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/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 - • **Compact Yet Mighty:** Slim 20.5 x 32 x 5.3mm size packs 250mAh capacity in just 5 grams—lightweight power on the go. - • **Safety First, Always:** Built-in PCM protection guards against overcharge, short circuit, and temperature spikes for peace of mind. - • **Perfect Fit, No Guesswork:** JST connector with strict polarity matching—avoid costly mistakes and keep your devices running smoothly. - • **Power Your Devices Reliably:** 3.7V voltage ensures consistent, stable energy for your Bluetooth speakers, dash cams, and more. - • **Certified Quality You Can Trust:** UN 38.3 and UL certified—industry-leading safety and performance standards for your essential gadgets. ## Overview The EEMB Lithium Polymer Battery Pack delivers a reliable 3.7V and 250mAh capacity in a compact 20.5 x 32 x 5.3mm form factor, weighing only 5 grams. Designed with a JST connector and strict polarity requirements, it ensures perfect compatibility with devices like VXI Blue Parrott and MP3/MP4 players. Featuring advanced PCM protection and certified by UN 38.3 and UL standards, this rechargeable battery pack offers long cycle life and safe, stable performance for Bluetooth speakers, dash cams, GPS units, and other smart devices. ## 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: Good quality product. - Item arrived on time, was very happy with the purchase. Review: Only 1 battery but paid for 4 - 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. ## 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 | | Amperage | 4 Amps | | Antenna Location | Alesis Radio, Bluetooth speaker, Dashcam, E-Bike Display, GPS, MP3 Player, MecArmy SGN3 flashlight, NES controller, Nextbase 512 dashcam, VXI Blue Parrott | | Battery Capacity | 250 Milliamp Hours | | Battery Cell Type | Polymer | | Battery Weight | 5 Grams | | Battery capacity | 250 Milliamp Hours | | Battery cell composition | Polymer | | Best Sellers Rank | 31 in Flash Battery Packs | | Brand | EEMB | | Brand Name | EEMB | | Compatible Phone Models | MP3 MP4 Speaker, VXI Blue Parrott | | Customer Reviews | 4.3 out of 5 stars 87 Reviews | | Item Dimensions | 20 x 32 x 5 millimetres | | Item Weight | 5 Grams | | Manufacturer | EEMB Co.,Ltd | | Model Name | LP502030 | | Model Number | LP502030-PCM | | Number of Batteries | 4 Lithium Polymer batteries required. (included) | | Number of batteries | 4 Lithium Polymer batteries required. (included) | | Recommended uses for product | Alesis Radio, Bluetooth speaker, Dashcam, E-Bike Display, GPS, MP3 Player, MecArmy SGN3 flashlight, NES controller, Nextbase 512 dashcam, VXI Blue Parrott Recommended uses for product Alesis Radio, Bluetooth speaker, Dashcam, E-Bike Display, GPS, MP3 Player, MecArmy SGN3 flashlight, NES controller, Nextbase 512 dashcam, VXI Blue Parrott See more | | Reusability | Rechargeable | | Voltage | 3.7 Volts | ## Product Details - **Battery capacity:** 250 Milliamp Hours - **Battery cell composition:** 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/71x3dj8OkwL.jpg) ![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 2](https://m.media-amazon.com/images/I/71yebwsUU2L.jpg) ![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 3](https://m.media-amazon.com/images/I/716okFbTUML.jpg) ![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 4](https://m.media-amazon.com/images/I/71ZVPBH+WcL.jpg) ![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 5](https://m.media-amazon.com/images/I/71pEIR21JIL.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 ### ⭐⭐⭐⭐⭐ Good quality product. *by P***L on 15 August 2023* Item arrived on time, was very happy with the purchase. ### ⭐⭐⭐⭐ 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. ### ⭐⭐⭐⭐⭐ Good buy *by S***H on 28 June 2026* They work great for the project I used them on ## 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) - EEMB Lithium Polymer battery 3.7V 2000mAh 103454 Lipo Rechargeable Battery Pack with wire JST Connector for Bluetooth Speaker and Dashcam-confirm device & connector polarity before purchase - elechawk 10pcs Upgraded Tiny Whoop JST-PH 2.0 Male and Female Connector Cable for Battery JJRC H36 H67 Blade Inductrix Eachine 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.tn/products/401008109-eemb-lithium-polymer-battery-3-7v-250mah-502030-lipo-rechargeable](https://www.desertcart.tn/products/401008109-eemb-lithium-polymer-battery-3-7v-250mah-502030-lipo-rechargeable) --- *Product available on Desertcart Tunisia* *Store origin: TN* *Last updated: 2026-08-26*