--- product_id: 313501981 title: "EEMB 4PACK Lipo Battery 3.7V 1100mAh 603449 Rechargeable Wire JST 2.0mm" brand: "eemb" price: "$52.46" currency: USD in_stock: true reviews_count: 12 url: https://www.desertcart.us/products/313501981-eemb-4pack-lipo-battery-3-7v-1100mah-603449-rechargeable-wire store_origin: US region: United States of America --- # 2C max discharge current (2200mA) 1100mAh high capacity PCM protection for safety EEMB 4PACK Lipo Battery 3.7V 1100mAh 603449 Rechargeable Wire JST 2.0mm **Brand:** eemb **Price:** $52.46 **Availability:** ✅ In Stock ## Summary > 🔋 Power your innovation with confidence — never miss a beat! ## Quick Answers - **What is this?** EEMB 4PACK Lipo Battery 3.7V 1100mAh 603449 Rechargeable Wire JST 2.0mm by eemb - **How much does it cost?** $52.46 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/313501981-eemb-4pack-lipo-battery-3-7v-1100mah-603449-rechargeable-wire) ## 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 - • **Advanced PCM Safety Circuit:** Overcharge, over-discharge & short circuit protection built-in. - • **Compact & Lightweight Design:** Only 22g and slim profile fits perfectly in your tech setups. - • **Power-packed 1100mAh Capacity:** Keep your devices running longer with reliable energy. - • **Rapid Discharge up to 2C (2200mA):** Instant power surge for demanding applications. - • **Universal Compatibility with JST Connector:** Seamlessly powers ESP32 boards, Bluetooth speakers, and IoT gadgets. ## Overview The EEMB 4PACK Lithium Polymer Battery offers a robust 1100mAh capacity at 3.7V with a compact 34.5x51x6.3mm size and lightweight 22g design. Featuring a JST connector with precise polarity, it supports a max discharge current of 2C (2200mA) and includes PCM protection for enhanced safety. Ideal for ESP32 development boards, Bluetooth speakers, and a wide range of IoT devices, these rechargeable batteries combine reliability, safety certifications, and long cycle life to keep your projects powered efficiently. ## Description Nominal Capacity & Voltage: 1100 mAh, 3.7 V Standard Charge Method: CC/CV (CV end current 22mA) Standard Charge current: 0.2C (220mA) Charge Max Voltage: 4.200±0.020V Standard Discharge Current: of 0.2C (220mA) Cut-off Voltage: 2.750±0.005 V Maximum Charge Current: 1C (1100mA) Maximum Discharge Current: 2C (2200 mA) Charge Temperature: 0 ~ 45 ℃/Discharge Temperature: -20 ~ +60 ℃/Storage Temperature: -20 ~ +25 ℃ Weight: 22g ## 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: 1100mAh, Min capacity: 1000mAh; Weight: approximate 22g; Size: 34.5 x 51 x 6.3mm (WxLxH). And the connector model of our battery is JSH-PHR-02. The distance between positive and negative poles is 2mm and the width of the whole plug is 5.8 mm. - 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. If you have any questions or concerns regarding our products, please send us a message and we will get back to you promptly. - Storage and 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, ESP32 Development Board，dash cam, keyboard and mouse, Wi-Fi smart home systems, PDA and digital cameras, GPS, monitoring units, e-books, tracking devices, blood oxygen tracking equipment, pulse monitors, wireless, IoT. ## Technical Specifications | Specification | Value | |---------------|-------| | Amperage | 4 Amps | | Antenna Location | GPS | | Asin | B08VRYS8FT | | Battery Capacity | 1100 Milliamp Hours | | Battery Cell Type | Lithium Polymer | | Battery Weight | 22 Grams | | Best Sellers Rank | #58,831 in Toys & Games (See Top 100 in Toys & Games) #51 in 3.7V Batteries #169 in Hobby Remote & App Controlled Vehicle Batteries | | Brand | EEMB | | Customer Reviews | 4.1 4.1 out of 5 stars (119) 4.1 out of 5 stars | | Item Dimensions | 1.36 x 2.01 x 0.25 inches | | Item Weight | 0.02 Kilograms | | Manufacturer | EEMB Co.,Ltd | | Model Name | 92-JM4C-EHLI | | Model Number | LP603449-PCM | | Number Of Batteries | 4 Lithium Polymer batteries required. (included) | | Reusability | Rechargeable | | Unit Count | 4.0 Count | | Voltage | 3.7 Volts | ## Product Details - **Battery Capacity:** 1100 Milliamp Hours - **Battery Cell Composition:** Lithium Polymer - **Brand:** EEMB - **Number of Batteries:** 4 Lithium Polymer batteries required. (included) - **Recommended Uses For Product:** GPS ## Images ![EEMB 4PACK Lipo Battery 3.7V 1100mAh 603449 Rechargeable Wire JST 2.0mm - Image 1](https://m.media-amazon.com/images/I/71UG9VdFXEL.jpg) ## Questions & Answers **Q: The box clearly states non rechargeable, are these actually rechargeable?!?!** A: I didn’t pay attention to my box but yes they are rechargeable. **Q: what's the shut off voltage?** A: 4.2 volts **Q: is the polarity of the connector reversed?** A: The polarity of the connector battery side is as you see it. Red(+) Black(-).... However... I have seen instances were the polarity of the pins on the equipment side has been reversed. A pain. You will have to verify the circuit diagram that you are connecting the battery to. **Q: Can it be used on 3 wire equipment? how to connect if yes? i am trying to use it on logitech mx master mouse.** A: 3 wire Lipo's have balancing tech/ability. These two wire batteries are not setup for that. ## Customer Reviews ### ⭐⭐⭐⭐⭐ On time delivery. *by on Reviewed in the United States January 18, 2025* I have no complaints. Everything was delivered undamaged and in a timely manner. Thank you. Used for electronic design and engineering projects. ### ⭐⭐⭐⭐⭐ Perfect *by on Reviewed in the United States December 16, 2024* These are exactly what you expect and the price is right. ### ⭐ Be aware *by on Reviewed in the United States June 17, 2024* These batteries don't hold the charge even for 10 seconds. left them to charge for over 24 hours and when unplugged it to take it the other location they turned off immediately.so it doesn't matter if they are good value when they don't work. ## Frequently Bought Together - EEMB 4PACK Lithium Polymer Battery 3.7V 1100mAh 603449 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/313501981-eemb-4pack-lipo-battery-3-7v-1100mah-603449-rechargeable-wire](https://www.desertcart.us/products/313501981-eemb-4pack-lipo-battery-3-7v-1100mah-603449-rechargeable-wire) --- *Product available on Desertcart United States of America* *Store origin: US* *Last updated: 2026-07-22*