--- product_id: 480949079 title: "3.7V Lipo 850mah Rechargeable Lipo with JST Plug X5 Charger for MJX Syma Holy Stone Sky Viper RC Quadcopter Drone X56W X400 X400W X300C X400C X800 HS110 HS200 S670 V950hd S1750 V2450" brand: "urgenex" price: "$86.20" currency: USD in_stock: true reviews_count: 5 category: "Urgenex" url: https://www.desertcart.us/products/480949079-3-7v-lipo-850mah-rechargeable-lipo-with-jst-plug-x5 store_origin: US region: United States of America --- # 3.7V stable voltage output 850mAh high-capacity power JST plug for seamless compatibility 3.7V Lipo 850mah Rechargeable Lipo with JST Plug X5 Charger for MJX Syma Holy Stone Sky Viper RC Quadcopter Drone X56W X400 X400W X300C X400C X800 HS110 HS200 S670 V950hd S1750 V2450 **Brand:** urgenex **Price:** $86.20 **Availability:** ✅ In Stock ## Summary > 🚀 Power your drone flights like a pro—never miss a moment in the sky! ## Quick Answers - **What is this?** 3.7V Lipo 850mah Rechargeable Lipo with JST Plug X5 Charger for MJX Syma Holy Stone Sky Viper RC Quadcopter Drone X56W X400 X400W X300C X400C X800 HS110 HS200 S670 V950hd S1750 V2450 by urgenex - **How much does it cost?** $86.20 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/480949079-3-7v-lipo-850mah-rechargeable-lipo-with-jst-plug-x5) ## Best For - urgenex enthusiasts ## Why This Product - Trusted urgenex brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Complete Power Kit:** Includes 5 batteries, 5 adapter cables, and a 5-port charger—ready to keep you airborne nonstop. - • **Lightweight Design:** At just 19g, it keeps your drone agile and responsive in the air. - • **Extended Flight Time:** 850mAh capacity fuels longer drone adventures without frequent swaps. - • **Rapid & Safe Charging:** Advanced tech eliminates memory effect, allowing quick top-ups anytime without performance loss. - • **Plug & Play Compatibility:** JST connector ensures effortless integration with top RC drone brands like MJX, Syma, and Holy Stone. ## Overview The URGENEX 3.7V 850mAh Li-Po rechargeable battery pack is engineered for popular RC drones, delivering reliable power with a lightweight 19g design and JST plug compatibility. Its high capacity and advanced charging technology ensure longer flight times and hassle-free recharging, making it an essential upgrade for serious drone enthusiasts. ## Description Specifications: Brand: URGENEX Chemistry: Li-Polymer Voltage: 3.7V Capacity: 850mAh Charge Plug: JST Dimension: 43.8*24.6*9.6mm/1.7*0.96*0.37inch Weight:19g/0.67oz Compatible: MJX Syma Holy Stone Sky Viper RC Quadcopter Drone X56W X400 X400W X300C X400C X800 HS110 HS200 S670 V950hd S1750 V2450 (Only if the voltage, dimension and the plug match, then it will fit). Package included: 5 x URGENEX 3.7V 850mah lipo Batteries(JST) 5 x JST to Molex adapter cables 1 x 5-port charger 1 x USB cable Review: Battery last a long time and I could fly rc planes for a long time. The price is unbeatable and and the quality is great. Review: This works with a Traxxas Alias Quadcopter. It’s thicker than the Traxxas battery, and is a tight fit. Plug is the mating end for the Alias interface plug, an adapter isn’t necessary. Once it slides into the bracket, it does have a tendency to want to stay at a slight angle. If you gently push from the front and guide it with a slight lift at the back, it falls into place. Removing is the process in reverse. I use a small popsicle stick to help push it out. First flight after charge was 20 minutes. I think this is worth the money. ## Features - ✈Application: URGENEX 850mah 3.7V Li-Po batteries will fit for MJX Syma Holy Stone Sky Viper RC Quadcopter Drone X56W X400 X400W X300C X400C X800 HS110 HS200 S670 V950hd S1750 V2450(Only if the voltage, dimension and the plug match, then it will fit). - ✈Parameter: Size: 43.8*24.6*9.6mm/1.7*0.96*0.37inch; Weight:19g/0.67oz; Capacity: 850mAh; Volt: 3.7V. - ✈Plug: JST Plug. Please noted that you should confirm your drone dimension and connector plug both are same as URGENEX batteries. - ✈More Power: Deliver power when you need it. URGENEX RC lipo pack deliver a discharge rate to push your RC drone fly time to the peak of its abilities. - ✈Convenient & Safe: Our high technology enables quick & constant charging at anytime, and no cell memory effect so that you do not need to full discharge before recharging. All of our RC lipos are available use at anytime. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B08T9FB56F | | Antenna Location | Drone | | Battery Capacity | 850 Milliamp Hours | | Battery Cell Type | Lithium Polymer | | Battery Weight | 19 Grams | | Best Sellers Rank | #212,447 in Toys ( See Top 100 in Toys ) #827 in RC Batteries | | Brand | URGENEX | | Customer Reviews | 4.3 4.3 out of 5 stars (671) | | Item Weight | 0.04 Pounds | | Manufacturer | URGENEX | | Model Name | x400,x800 | | Number of Batteries | 5 Lithium Polymer batteries required. (included) | | Reusability | Rechargeable | | UPC | 607604398801 | | Unit Count | 1.0 Count | | Voltage | 3.7 Volts | ## Product Details - **Battery capacity:** 850 Milliamp Hours - **Battery cell composition:** Lithium Polymer - **Brand:** URGENEX - **Number of batteries:** 5 Lithium Polymer batteries required. (included) - **Recommended uses for product:** Drone ## Images ![3.7V Lipo 850mah Rechargeable Lipo with JST Plug X5 Charger for MJX Syma Holy Stone Sky Viper RC Quadcopter Drone X56W X400 X400W X300C X400C X800 HS110 HS200 S670 V950hd S1750 V2450 - Image 1](https://m.media-amazon.com/images/I/71Mf0z09wUS.jpg) ## Questions & Answers **Q: Why wasn't a USB cable for the charger sent? I have no way to charge these batteries without the cable shown in the pic.** A: https://www.amazon.com/BosLi-Po-Battery-Charger-Interface-Charging/dp/B0B81HWY4F/ref=sr_1_42?keywords=lipo+charger&qid=1690263193&sr=8-42 **Q: Will these work for a blade 120sr?** A: Dear customer, Thanks for your inquiry. The paramete: size: 43.8*24.6*9.6mm/1.7*0.96*0.37inch; Weight:0.67oz; Capacity: 850mAh; Volt: 3.7V. Only if the voltage, dimension and the plug match, then it will fit. Hoping we could help you a lot. As a responsible seller, URGENEX always insists customer first and offers one year warranty. If you have any question, please don't hesitate to contact us. Our customer service team will always be here to serve for you. **Q: will this work on a Dromida ominus fpv, 238 first person view quad drone** A: Yes if possible. **Q: These will power an a6 gps drone ?** A: Flight time would be limited since the a6 has 1600 mah and these are 850 mag. But they are the same voltagw ## Customer Reviews ### ⭐⭐⭐⭐⭐ Review *by C***N on 7 February 2026* Battery last a long time and I could fly rc planes for a long time. The price is unbeatable and and the quality is great. ### ⭐⭐⭐⭐⭐ Review *by J***H on 18 June 2025* This works with a Traxxas Alias Quadcopter. It’s thicker than the Traxxas battery, and is a tight fit. Plug is the mating end for the Alias interface plug, an adapter isn’t necessary. Once it slides into the bracket, it does have a tendency to want to stay at a slight angle. If you gently push from the front and guide it with a slight lift at the back, it falls into place. Removing is the process in reverse. I use a small popsicle stick to help push it out. First flight after charge was 20 minutes. I think this is worth the money. ### ⭐⭐⭐⭐⭐ Review *by S***. on 30 September 2025* Great Little Package for the price. cool, simple charger. DOES NOT FIT LaTrax Alias Drone without modification to the battery holder. ## Frequently Bought Together - URGENEX 3.7V Lipo 850mah Rechargeable Lipo with JST Plug X5 Charger for MJX Syma Holy Stone Sky Viper RC Quadcopter Drone X56W X400 X400W X300C X400C X800 HS110 HS200 S670 V950hd S1750 V2450 - Sky Viper Type-R Racing Drone - Sky Viper Dash Nano Drone --- ## 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/480949079-3-7v-lipo-850mah-rechargeable-lipo-with-jst-plug-x5](https://www.desertcart.us/products/480949079-3-7v-lipo-850mah-rechargeable-lipo-with-jst-plug-x5) --- *Product available on Desertcart United States of America* *Store origin: US* *Last updated: 2026-05-19*