--- product_id: 261693403 title: "4PACK Lithium Polymer Battery 3.7V 2000mAh 103454 Lipo Rechargeable Battery Pack with Wire JST Connector for Speaker and Wireless Device- Confirm Device & Connector Polarity Before Purchase" brand: "eemb" price: "$77.76" currency: USD in_stock: true reviews_count: 13 category: "Eemb" url: https://www.desertcart.us/products/261693403-4pack-lithium-polymer-battery-3-7v-2000mah-103454-lipo-rechargeable store_origin: US region: United States of America --- # 2000mAh High Capacity 3.7V Voltage Power JST Connector Precision 4PACK Lithium Polymer Battery 3.7V 2000mAh 103454 Lipo Rechargeable Battery Pack with Wire JST Connector for Speaker and Wireless Device- Confirm Device & Connector Polarity Before Purchase **Brand:** eemb **Price:** $77.76 **Availability:** ✅ In Stock ## Summary > 🔋 Power your essentials with precision and confidence! ## Quick Answers - **What is this?** 4PACK Lithium Polymer Battery 3.7V 2000mAh 103454 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?** $77.76 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/261693403-4pack-lithium-polymer-battery-3-7v-2000mah-103454-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 - • **Precision Fit:** Designed with exact JST connector and polarity to ensure seamless compatibility—no guesswork needed. - • **Power That Lasts:** Reliable 2000mAh capacity keeps your devices running longer without constant recharging. - • **Safe & Certified:** UN 38.3 and UL certified with built-in PCM protection against overcharge, discharge, and short circuits. - • **Compact & Lightweight:** Slim 34.5x56x10.6mm size and just 40g—perfect for sleek, portable tech without bulk. - • **Eco-Smart Rechargeable:** Rechargeable lithium polymer tech reduces waste and keeps your favorite devices powered sustainably. ## Overview The EEMB 4PACK Lithium Polymer Battery offers a robust 3.7V and 2000mAh capacity in a compact 34.5x56x10.6mm form factor. Featuring a JST connector with strict polarity requirements, it ensures perfect device compatibility. Certified for safety with UN 38.3 and UL standards, it includes PCM protection for overcharge, discharge, and short circuit. Ideal for Bluetooth speakers, smart home devices, and more, this rechargeable battery pack delivers reliable, long-lasting power for your essential wireless gadgets. ## Description Buy EEMB 4PACK Lithium Polymer Battery 3.7V 2000mAh 103454 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: Reliable and Long-Lasting Battery - Works perfectly! The battery holds a great charge and performs exactly as described. It was easy to install and revived my device instantly. Great quality and fast shipping — very satisfied Review: Revived our sound machine - We love a sound machine we bought from Brookstone several years ago. As life has it, technology turns over at an alarming rate these days and replacement parts - even something as common as batteries - become unavailable. Our sound machine used a slightly smaller battery with a slightly different plug. But with a little soldering and heat shrink tubing [two wires; one red and one black], this new battery fit perfectly into its designated space. It's a perfect repair for our beloved machine. It's quality of sound for its size plus the types of sounds it creates is our favorite features and we are thrilled to have it working once again [the old battery swelled warping the internal mechanisms]. Sleep is important and with our sound machine we get really high quality sleep. Repairing is always preferable for us over replacing and with this solution we are quite happy. Now, I've got to turn on our machine and go take a nap [yawn]. Don't let the difference in connectors shy you away. With a little ingenuity, you too can repair something. Plus you probably have a friend who could help you out if you cannot do this yourself anyway. Give this a shot. We did and we're glad we did. ## 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: 2000mAh, Min capacity: 1900mAh; Weight: 40g; Battery size (WxLxH): 34.5 X 56 X 10.6 mm / 1.36 X 2.2 X 0.41 inch - 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 smart home systems, PDA and digital cameras, GPS, e-books, tracking devices, blood oxygen tracking equipment, pulse monitors, wireless, IoT. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B08HD33ZKB | | Batteries | 100 Lithium Polymer batteries required. (included) | | Best Sellers Rank | #50,218 in Health & Household ( See Top 100 in Health & Household ) #7 in 3.7V Batteries | | Customer Reviews | 4.2 4.2 out of 5 stars (2,050) | | Date First Available | November 25, 2019 | | Is Discontinued By Manufacturer | No | | Item Weight | 1.94 ounces | | Item model number | LP103454-PCM | | Manufacturer | EEMB Co.,Ltd | | Product Dimensions | 1.36 x 2.2 x 0.42 inches | ## Product Details - **Battery Capacity:** 2000 Milliamp Hours - **Battery Cell Composition:** Lithium Polymer - **Brand:** EEMB - **Number of Batteries:** 100 Lithium Polymer batteries required. (included) - **Recommended Uses For Product:** Indoor/Outdoor ## Images ![4PACK Lithium Polymer Battery 3.7V 2000mAh 103454 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/71txH+Gen0L.jpg) ## Available Options This product comes in different **Size** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Reliable and Long-Lasting Battery *by S***N on October 17, 2025* Works perfectly! The battery holds a great charge and performs exactly as described. It was easy to install and revived my device instantly. Great quality and fast shipping — very satisfied ### ⭐⭐⭐⭐⭐ Revived our sound machine *by I***L on April 14, 2021* We love a sound machine we bought from Brookstone several years ago. As life has it, technology turns over at an alarming rate these days and replacement parts - even something as common as batteries - become unavailable. Our sound machine used a slightly smaller battery with a slightly different plug. But with a little soldering and heat shrink tubing [two wires; one red and one black], this new battery fit perfectly into its designated space. It's a perfect repair for our beloved machine. It's quality of sound for its size plus the types of sounds it creates is our favorite features and we are thrilled to have it working once again [the old battery swelled warping the internal mechanisms]. Sleep is important and with our sound machine we get really high quality sleep. Repairing is always preferable for us over replacing and with this solution we are quite happy. Now, I've got to turn on our machine and go take a nap [yawn]. Don't let the difference in connectors shy you away. With a little ingenuity, you too can repair something. Plus you probably have a friend who could help you out if you cannot do this yourself anyway. Give this a shot. We did and we're glad we did. ### ⭐⭐⭐⭐⭐ Higher capacity than my original battery *by A***R on September 15, 2025* For my application I have to replace the plug but the battery is excellent ## Frequently Bought Together - EEMB 4PACK Lithium Polymer Battery 3.7V 2000mAh 103454 Lipo Rechargeable Battery Pack with Wire JST Connector for Speaker and Wireless Device- 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 E010 E013 - HiLetgo 3pcs TP4056 Type-c USB 5V 1A 18650 Lithium Battery Charger Module Charging Board with Dual Protection Functions --- ## 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.us/products/261693403-4pack-lithium-polymer-battery-3-7v-2000mah-103454-lipo-rechargeable](https://www.desertcart.us/products/261693403-4pack-lithium-polymer-battery-3-7v-2000mah-103454-lipo-rechargeable) --- *Product available on Desertcart United States of America* *Store origin: US* *Last updated: 2026-05-09*