--- product_id: 296641463 title: "802540 3.7v 900mAh Lithium Battery for Sena 10S 20s 30K Series 10S-01 20s-01 30K-01D Motorcycles Bluetooth Headset Battery Replacement Intercom" brand: "hxjnldc" price: "R685" currency: ZAR in_stock: true category: "Hxjnldc" url: https://www.desertcart.co.za/products/296641463-802540-3-7v-900mah-lithium-battery-for-sena-10s-20s store_origin: ZA region: South Africa --- # 3.7V nominal voltage, 4.2V full charge 900mAh high-capacity power Advanced overcharge & short circuit protection 802540 3.7v 900mAh Lithium Battery for Sena 10S 20s 30K Series 10S-01 20s-01 30K-01D Motorcycles Bluetooth Headset Battery Replacement Intercom **Brand:** hxjnldc **Price:** R685 **Availability:** ✅ In Stock ## Summary > 🔋 Power your ride, protect your journey. ## Quick Answers - **What is this?** 802540 3.7v 900mAh Lithium Battery for Sena 10S 20s 30K Series 10S-01 20s-01 30K-01D Motorcycles Bluetooth Headset Battery Replacement Intercom by hxjnldc - **How much does it cost?** R685 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.za](https://www.desertcart.co.za/products/296641463-802540-3-7v-900mah-lithium-battery-for-sena-10s-20s) ## 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:** Built-in 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—ride light, stay charged. - • **Universal Flexibility:** Works with other 3.7-5V devices under 3.33Wh—adaptable power for your tech arsenal. - • **DIY Friendly Installation:** Includes heat-shrink sleeve for easy wire splicing—customize your connection with confidence. - • **Seamless Sena Compatibility:** Perfect fit for Sena 10S, 20s, 30K series headsets—never miss a call or track update. ## Overview This 802540 lithium polymer battery delivers a reliable 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, long-lasting performance. Compact and lightweight, it also supports other low-power 3.7-5V devices under 3.33Wh. The package includes a heat-shrink insulating sleeve for easy DIY installation, making it the perfect 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 30K-01D Motorcycles Bluetooth Headset Battery Replacement Intercom : Electronics ## Features - Compatible with Sena 10S series，Sena 10S-01， Sena 20s series，Sena 20s-01，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 Type | Lithium Polymer | | Battery Weight | 16.8 g | | Best Sellers Rank | #128,327 in Health & Household ( See Top 100 in Health & Household ) #68 in 3.7V Batteries | | Brand | HXJNLDC | | Customer Reviews | 4.3 4.3 out of 5 stars (659) | | 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) | | 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 20s 30K Series 10S-01 20s-01 30K-01D Motorcycles Bluetooth Headset Battery Replacement Intercom - 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… ## 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.co.za/products/296641463-802540-3-7v-900mah-lithium-battery-for-sena-10s-20s](https://www.desertcart.co.za/products/296641463-802540-3-7v-900mah-lithium-battery-for-sena-10s-20s) --- *Product available on Desertcart South Africa* *Store origin: ZA* *Last updated: 2026-10-07*