--- product_id: 296641463 title: "802540 3.7v 900mAh lithium battery for Sena 10S series Sena 10S-01 ena Sena 2..." brand: "hxjnldc" price: "121.89 DT" currency: TND in_stock: true reviews_count: 13 category: "Hxjnldc" url: https://www.desertcart.tn/products/296641463-802540-3-7v-900mah-lithium-battery-for-sena-10s-series store_origin: TN region: Tunisia --- # 3.7V nominal voltage, 4.2V full charge 900mAh high-capacity power Built-in overcharge & short circuit protection 802540 3.7v 900mAh lithium battery for Sena 10S series Sena 10S-01 ena Sena 2... **Brand:** hxjnldc **Price:** 121.89 DT **Availability:** ✅ In Stock ## Summary > 🔋 Power your ride, stay connected, and never miss a beat! ## Quick Answers - **What is this?** 802540 3.7v 900mAh lithium battery for Sena 10S series Sena 10S-01 ena Sena 2... by hxjnldc - **How much does it cost?** 121.89 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/296641463-802540-3-7v-900mah-lithium-battery-for-sena-10s-series) ## Best For - hxjnldc enthusiasts ## Why This Product - Trusted hxjnldc brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Safety-First Tech:** Japanese Seiko IC safeguards against overcharge, overcurrent, and short circuits for worry-free rides. - • **Compact Powerhouse:** Slim 8×25×41mm design packs 900mAh capacity without bulk—ideal for sleek helmet setups. - • **DIY Friendly Connector:** Includes heat shrinkable sleeve and JST 2-pin connector for easy, secure battery swaps—no tech degree needed. - • **Lightweight & Long-Lasting:** At just 18g, this lithium polymer battery keeps your Bluetooth headset powered through every ride. - • **Seamless Sena Compatibility:** Perfectly engineered for Sena 10S, 20s, 30K series headsets—never miss a call or track update. ## Overview This 802540 lithium polymer battery delivers 900mAh capacity at 3.7V nominal voltage, designed specifically for Sena 10S, 20s, and 30K Bluetooth motorcycle headsets. Featuring advanced Japanese Seiko IC protection against overcharge, overcurrent, and short circuits, it ensures safe, reliable power. Compact and lightweight, it includes a JST 2-pin connector and heat shrinkable sleeve for easy installation, making it the ultimate replacement battery to keep your communication seamless on every ride. ## Description desertcart.com: HXJNLDC 802540 3.7v 900mAh Lithium Battery for Sena 10S 20s 30K Series 10S-01 20s-01 20s evo 30K-01D Motorcycles Bluetooth Headset Battery Replacement Intercom : Electronics Review: Replacement batteries for Senna intercom system - They fit perfectly Review: Great! - A little time-consuming to put batteries into transmitter for helmet Bluetooth for motorcycle riding. But once in snd charged, they are good! ## Features - Compatible with Sena 10S series，Sena 10S-01， Sena 20s series，Sena 20s-01，Sena 20s evo，Sena 30K series，Sena 30K-01D Bluetooth Headset Battery Replacement。It can also be used in other 3.7-5V electronic products with power less than 3.33Wh (900mAh).（★ Not applicable to high-power electric tools and model aircraft） - Please compare the connector specifications and polarity according to the display diagram before purchasing,★the red wire is the positive "+" and the black wire is the negative "-"，Do not reverse-charge or reverse-connectreverse. ★The primary battery of some products has no plug or mismatched plug or mismatched polarity. It doesn't matter, you can cut and solder the plug directly or use our heat shrinkable insulating sleeve to connect the same color wire. - 802540 rechargeable lithium ion polymer battery, nominal voltage 3.7V, full charge voltage 4.2V, capacity 900mAh, power 3.33Wh, ★size 8×25×41mm(0.315×0.984×1.614inch）(T*W*L), Weight:18g(0.635oz)，Maximum current:1A。 It can prevent overcharge, overdischarge, overcurrent, and short circuit. - It‘s consists of of large-capacity A+ lithium battery, Japanese Seiko IC overcharge and overcurrent short circuit protection board, 3302-28 high temperature resistant silicone cable, and genuine JST Pitch1.0mm 2-pin connector module. - If there are any quality issues within a year,★ please feel free to contact us via email for replacement. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B08TBYRSNQ | | Amperage | 0.9 A | | Antenna Location | Motorcycles | | Battery Capacity | 900 milliamp_hours | | Battery Cell Composition | Lithium Polymer | | Battery Cell Type | Lithium Polymer | | Battery Weight | 16.8 g | | Best Sellers Rank | #107,138 in Health & Household ( See Top 100 in Health & Household ) #35 in 3.7V Batteries | | Brand | HXJNLDC | | Customer Reviews | 4.2 out of 5 stars 641 Reviews | | Included Components | 850mAh battry x 1 pack, heat shrinkable insulating sleeve x 1 | | Item Dimensions | 1.61 x 0.98 x 0.31 inches | | Item Weight | 16.8 g | | Manufacturer | HXJN | | Model Name | 802540 | | Model Number | 802540 | | Number of Batteries | 1 C batteries required. (included) | | Recommended Uses For Product | Motorcycles | | Reusability | Rechargeable | | UPC | 049500840204 | | Unit Count | 1 Count | | Voltage | 3.7 volts_of_direct_current | ## Product Details - **Battery Capacity:** 900 Milliamp Hours - **Battery Cell Composition:** Lithium Polymer - **Brand:** HXJNLDC - **Number of Batteries:** 1 C batteries required. (included) - **Recommended Uses For Product:** Motorcycles ## Images ![802540 3.7v 900mAh lithium battery for Sena 10S series Sena 10S-01 ena Sena 2... - Image 1](https://m.media-amazon.com/images/I/51bgtF2X9KL.jpg) ## Available Options This product comes in different **Color, Size** options. ## Questions & Answers **Q: Will fit on a Sena Outrush Helmet???** A: Hello, I am not sure it is suitable for Sena Outrush Helmet at present. You need to take out the primary battery to compare the size, connector and polarity. **Q: current headset is listed as SMH 10b the current battery is 560mAh 2.07wh will this work?** A: If it fits the higher mAh it. will last longer between charges….. **Q: Does this battery fit the Sena 50s?** A: Existing data are not certain to apply. You need to compare the original battery connector before you can determine **Q: Do these come fully charged.** A: I just installed the battery in a motorcycle helmet and charged it without trying it right away! It was fully charged in a much shorter time than the original battery in my husband’s helmet… ## Customer Reviews ### ⭐⭐⭐⭐⭐ Replacement batteries for Senna intercom system *by T***M on July 19, 2026* They fit perfectly ### ⭐⭐⭐⭐⭐ Great! *by B***R on August 16, 2026* A little time-consuming to put batteries into transmitter for helmet Bluetooth for motorcycle riding. But once in snd charged, they are good! ### ⭐⭐⭐⭐⭐ Works after jumping through the preverbal flaming hoop. (Wooops! My Bad) *by M***Y on October 26, 2023* UPDATE UPDATE UPDATE............. I have a Sena SMH 10 FM. Sena must have a dozen variations of the SMH10. My SMH 10 FM is maybe 7 or 8 years old, but recently, it would shut down after 2 or 3 hours of operation because of “low battery”. This replacement battery looked like an excellent choice due to a one to one replacement. However, upon receipt, the plugs did not match. The replacement battery plug was different, slightly smaller. So I looked at Utube videos on how to solder a new battery to the original plug. Looked like a piece of cake. Except that I had no soldering experience, plus no soldering iron, wire stripper, flux, heat shrink tubing, or solder. I invested in all this electronic equipment that I will probably never use again and, I quickly found out that soldering is a learned skill, and not as easy as the videos portrayed for a first timer . With much frustration, I bungled my way through the soldering the replacement battery to the original equipment plug. I then discovered that the replacement battery was thicker than the original battery!!!! I learned some new curse words in trying to reassemble the unit after I installed the new battery. SON OF A BITCH!!!!!. The two parts did not want to snap together due to a thicker battery!!!! After a half hour or so, and a Herculean struggle, I got the two parts back together. So, 5 stars for having a new battery for a longer operating life, (I hope), and 1 star for the convenience of replacement. YMMV. NEWS FLASH!! It turns out, my Sena unit is a SPH10H, and not a SMH10S.It sure looks like a 10S. but it isn't. I would have thought Sena would standardize the batteries and plugs for the entire 10 line, but not so. so I'm changing my rating to a 5, cause I didn't read the description close enough, and now have it finally installed, all is well, ## Frequently Bought Together - 802540 3.7v 900mAh lithium battery for Sena 10S series Sena 10S-01 ena Sena 20s series Sena 20s-01 Sena 20s evo Sena 30K series Sena 30K-01D Motorcycles Bluetooth Headset Battery Replacement Intercom - Sena - SC-A0325 High Definition Speakers, Improved Bass and Clarity | Fits 20S EVO and 30K | Upgraded (Black, One Size) - Sena SC-A0100 Micro-USB Type Power Cable --- ## 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/296641463-802540-3-7v-900mah-lithium-battery-for-sena-10s-series](https://www.desertcart.tn/products/296641463-802540-3-7v-900mah-lithium-battery-for-sena-10s-series) --- *Product available on Desertcart Tunisia* *Store origin: TN* *Last updated: 2026-08-30*