---
product_id: 628698896
title: "802540 3.7v 900mAh Rechargeable Lithium Polymer Battery, Suitable for Sena 10S 20s 30K Series Motorcycles Bluetooth Headset Intercom Battery Replacement Sena 10S-01 ENA、20s-01、20s evo、30K-01D"
brand: "hxjnldc"
price: "13087 Ft"
currency: HUF
in_stock: true
url: https://www.desertcart.hu/products/628698896-802540-3-7v-900mah-rechargeable-lithium-polymer-battery-suitable-sena
store_origin: HU
region: Hungary
---

# 3.7V nominal voltage with 4.2V full charge 900mAh high-capacity power Advanced overcharge & short circuit protection 802540 3.7v 900mAh Rechargeable Lithium Polymer Battery, Suitable for Sena 10S 20s 30K Series Motorcycles Bluetooth Headset Intercom Battery Replacement Sena 10S-01 ENA、20s-01、20s evo、30K-01D

**Brand:** hxjnldc
**Price:** 13087 Ft
**Availability:** ✅ In Stock

## Summary

> 🔋 Power your ride, stay connected, never miss a beat!

## Quick Answers

- **What is this?** 802540 3.7v 900mAh Rechargeable Lithium Polymer Battery, Suitable for Sena 10S 20s 30K Series Motorcycles Bluetooth Headset Intercom Battery Replacement Sena 10S-01 ENA、20s-01、20s evo、30K-01D by hxjnldc
- **How much does it cost?** 13087 Ft with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hu](https://www.desertcart.hu/products/628698896-802540-3-7v-900mah-rechargeable-lithium-polymer-battery-suitable-sena)

## 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

- • **DIY friendly:** Includes heat shrinkable insulating sleeve and clear polarity guidance for easy, safe wiring
- • **Safety first:** Built-in Japanese Seiko IC protects against overcharge, overcurrent, and short circuits
- • **Precision fit:** Custom-designed for Sena 10S, 20s, and 30K series for seamless replacement
- • **Power that lasts:** 900mAh capacity ensures extended Bluetooth headset use without constant recharging
- • **Compact & lightweight:** Slim 8×25×41mm size and just 18g weight for discreet, hassle-free installation

## Overview

This 3.7V 900mAh rechargeable lithium polymer battery is a perfect replacement for Sena 10S, 20s, and 30K series Bluetooth motorcycle headsets. Featuring a compact design, advanced Japanese Seiko IC protection, and a durable silicone cable, it delivers reliable power with built-in safeguards against overcharge, overcurrent, and short circuits. Ideal for professional riders and DIY enthusiasts seeking a safe, long-lasting battery upgrade.

## Description

802540 3.7v 900mAh Rechargeable Lithium Polymer Battery, Suitable for Sena 10S 20s 30K Series Motorcycles Bluetooth Headset Intercom Battery Replacement Sena 10S-01 ENA、20s-01、20s evo、30K-01D

## 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。Also suitable for DIY electronic products with 3.7-5V and less than 3.33Wh 900mAh built-in 2-wire battery replacement.（★ Not applicable to high-power electric tools and model aircraft）
- Please note that the specifications and polarity of the connector are based on the product display image,★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(0.315×0.984×1.594inch）(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 Pitch 1.0mm ★2 wire 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 |
| Batteries | 1 C batteries required. (included) |
| Best Sellers Rank | #125,069 in Health & Household ( See Top 100 in Health & Household ) #145 in 3.7V Batteries |
| Customer Reviews | 4.3 4.3 out of 5 stars (1,501) |
| Date First Available | January 8, 2021 |
| Is Discontinued By Manufacturer | No |
| Item Weight | 0.593 ounces |
| Item model number | 402030 |
| Manufacturer | HXJN |
| Product Dimensions | 1.61 x 0.98 x 0.31 inches |

## Product Details

- **Number of batteries:** 1 C batteries required. (included)
- **Brand:** HXJNLDC
- **Battery cell composition:** Lithium Polymer
- **Battery capacity:** 900 Milliamp Hours
- **Recommended uses for product:** MP3 Player, Toys, Watch, Radio, GPS

## Images

![802540 3.7v 900mAh Rechargeable Lithium Polymer Battery, Suitable for Sena 10S 20s 30K Series Motorcycles Bluetooth Headset Intercom Battery Replacement Sena 10S-01 ENA、20s-01、20s evo、30K-01D - Image 1](https://m.media-amazon.com/images/I/61uXzPTiM8L.jpg)

## 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

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**Shop now:** [https://www.desertcart.hu/products/628698896-802540-3-7v-900mah-rechargeable-lithium-polymer-battery-suitable-sena](https://www.desertcart.hu/products/628698896-802540-3-7v-900mah-rechargeable-lithium-polymer-battery-suitable-sena)

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*Product available on Desertcart Hungary*
*Store origin: HU*
*Last updated: 2026-02-22*