--- product_id: 369507227 title: "Lithium Polymer Battery 3.7V 1400mAh 112945 Lipo Rechargeable Battery Pack with Wire JST Connector for Speaker and Wireless Device- Confirm Device & Connector Polarity Before Purchase" brand: "eemb" price: "43.64 DT" currency: TND in_stock: true reviews_count: 11 category: "Eemb" url: https://www.desertcart.tn/products/369507227-lithium-polymer-battery-3-7v-1400mah-112945-lipo-rechargeable-battery store_origin: TN region: Tunisia --- # 3.7V stable voltage 1400mAh high capacity JST connector precision Lithium Polymer Battery 3.7V 1400mAh 112945 Lipo Rechargeable Battery Pack with Wire JST Connector for Speaker and Wireless Device- Confirm Device & Connector Polarity Before Purchase **Brand:** eemb **Price:** 43.64 DT **Availability:** ✅ In Stock ## Summary > 🔋 Power up smart, stay connected longer! ## Quick Answers - **What is this?** Lithium Polymer Battery 3.7V 1400mAh 112945 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?** 43.64 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/369507227-lithium-polymer-battery-3-7v-1400mah-112945-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 - • **Safe & Sound:** Built-in PCM protection guards against overcharge, over-discharge, and short circuits for peace of mind. - • **Precision Fit:** Designed with a specific JST connector and polarity—no guesswork, no shorts, just perfect compatibility. - • **Power That Lasts:** Boost your device runtime with a robust 1400mAh capacity—stay unplugged longer. - • **Certified Quality:** UN 38.3 and UL certified—trusted safety and reliability for your essential devices. - • **Compact & Lightweight:** Slim 29.5 x 47 x 11.3mm size and just 28g—power that fits seamlessly into your tech lifestyle. ## Overview The EEMB Lithium Polymer Battery is a 3.7V, 1400mAh rechargeable power source featuring a precise JST connector and strict polarity requirements to ensure device compatibility. Compact and lightweight, it includes PCM protection for enhanced safety and is certified by UN 38.3 and UL standards, making it ideal for Bluetooth speakers, smart home devices, GPS units, and more. ## Description Product description Search EEMB for more options with whole sale prices. Cannot be used for some drones Bluetooth speaker Dash cam Bark collar for dog Keyboard and mouse Review: Was looking for a replacement/upgrade for these headlamps - This battery dimension fits the headlamps I ordered where the battery just wasn't holding a charge as long. I am hoping with almost 50% more battery capacity, I won't have to do this for quite a while. I went ahead and installed the connector (already in there soldering) for when that time comes. Review: Useful battery, but double-check the polarity! - As noted in the product title, beware of the polarity. For some reason, there are two common wiring conventions. Since I've been using a lot of Adafruit boards lately, I needed it wired for "center negative." I tested it right after it arrived and quickly reversed the polarity. No soldering needed — just a male and female JST cable and some solderless connectors like Wagos. Moral of the story: always check polarity before plugging in a LiPo! Once rewired, it charged and worked perfectly with my dev boards. ## 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 short circuit if the polarity of the battery connector does not match your device.) - BASIC INFO—VOLTAGE: 3.7V; Typical capacity: 1400mAh, Weight: approximate 28g; Size: 29.5 x 47 x 11.3mm/1.16"x1.85"x0.44" (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.//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. - 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. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B095W4HS75 | | Antenna Location | GPS | | Battery Capacity | 1400 Milliamp Hours | | Battery Cell Composition | Lithium Polymer | | Battery Cell Type | Lithium Polymer | | Best Sellers Rank | #228,053 in Health & Household ( See Top 100 in Health & Household ) #304 in 3.7V Batteries | | Brand | EEMB | | Customer Reviews | 4.0 out of 5 stars 61 Reviews | | Item Dimensions | 1.16 x 1.85 x 0.44 inches | | Manufacturer | EEMB Co.,Ltd | | Model Name | jst | | Model Number | LP112945 | | Number of Batteries | 1 Lithium Polymer batteries required. (included) | | Recommended Uses For Product | GPS | | Reusability | Rechargeable | | Unit Count | 1 Count | | Voltage | 3.7 Volts | ## Product Details - **Battery Capacity:** 1400 Milliamp Hours - **Battery Cell Composition:** Lithium Polymer - **Brand:** EEMB - **Number of Batteries:** 1 Lithium Polymer batteries required. (included) - **Recommended Uses For Product:** GPS ## Images ![Lithium Polymer Battery 3.7V 1400mAh 112945 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/617UwWmJQgL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Was looking for a replacement/upgrade for these headlamps *by C***S on January 19, 2026* This battery dimension fits the headlamps I ordered where the battery just wasn't holding a charge as long. I am hoping with almost 50% more battery capacity, I won't have to do this for quite a while. I went ahead and installed the connector (already in there soldering) for when that time comes. ### ⭐⭐⭐⭐⭐ Useful battery, but double-check the polarity! *by R***D on June 1, 2025* As noted in the product title, beware of the polarity. For some reason, there are two common wiring conventions. Since I've been using a lot of Adafruit boards lately, I needed it wired for "center negative." I tested it right after it arrived and quickly reversed the polarity. No soldering needed — just a male and female JST cable and some solderless connectors like Wagos. Moral of the story: always check polarity before plugging in a LiPo! Once rewired, it charged and worked perfectly with my dev boards. ### ⭐⭐⭐ CHECK POLARITY, CHECK THAT THE RED CABLE GOES TO THE POSITIVE ON WHATEVER YOU CONNECT IT *by X***N on September 21, 2025* CHECK POLARITY, CHECK THAT THE RED CABLE GOES TO THE POSITIVE ON WHATEVER YOU CONNECT IT, IF IT DOESN'T YOU CAN FRY YOUR ELECTRONIC OR BATTERY MAY CATCH FIRE will update after I charge and see how well it holds charge ## Frequently Bought Together - EEMB 3.7V Lipo Battery 1400mAh 112945 Lithium Polymer ion Battery Rechargeable Lithium ion Polymer Battery with JST Connector Make Sure Device Polarity Matches with Battery 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 - MakerFocus 10pcs TP4056 Charging Module with Battery Protection 186 50 BMS 5V Micro USB 1A 186 50 Lithium Battery Charging Board --- ## 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/369507227-lithium-polymer-battery-3-7v-1400mah-112945-lipo-rechargeable-battery](https://www.desertcart.tn/products/369507227-lithium-polymer-battery-3-7v-1400mah-112945-lipo-rechargeable-battery) --- *Product available on Desertcart Tunisia* *Store origin: TN* *Last updated: 2026-07-30*