---
product_id: 326535078
title: "3.7V 350mAh Replacement Battery for Sennheiser Flex 5000, RS 5000, Set 880 Digital Wireless Headphones, AHB571935PCT-03, BAP 800"
brand: "starnovo"
price: "₨10214"
currency: LKR
in_stock: true
reviews_count: 1
url: https://www.desertcart.lk/products/326535078-3-7v-350mah-replacement-battery-for-sennheiser-flex-5000-rs
store_origin: LK
region: Sri Lanka
---

# 3.7V voltage 350mAh capacity UL & CE certified 3.7V 350mAh Replacement Battery for Sennheiser Flex 5000, RS 5000, Set 880 Digital Wireless Headphones, AHB571935PCT-03, BAP 800

**Brand:** starnovo
**Price:** ₨10214
**Availability:** ✅ In Stock

## Summary

> 🔋 Power Up Your Sound Experience!

## Quick Answers

- **What is this?** 3.7V 350mAh Replacement Battery for Sennheiser Flex 5000, RS 5000, Set 880 Digital Wireless Headphones, AHB571935PCT-03, BAP 800 by starnovo
- **How much does it cost?** ₨10214 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.lk](https://www.desertcart.lk/products/326535078-3-7v-350mah-replacement-battery-for-sennheiser-flex-5000-rs)

## Best For

- starnovo enthusiasts

## Why This Product

- Trusted starnovo brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Safety First:** Certified by UL, CE, and RoHS for peace of mind
- • **Lightweight Design:** Weighs only 10 grams for effortless portability
- • **Long-lasting Power:** Over 300 cycles for extended use
- • **Hassle-free Warranty:** 180 days warranty for worry-free usage
- • **Unmatched Compatibility:** 100% compatible with Sennheiser models

## Overview

The STARNOVO 3.7V 350mAh Replacement Battery is designed for Sennheiser Flex 5000, RS 5000, and Set 880 Digital Wireless Headphones. This rechargeable lithium polymer battery offers a reliable power source with a capacity of 350mAh and a nominal voltage of 3.7V. It boasts over 300 cycles of life and is certified for safety, ensuring you enjoy uninterrupted audio bliss.

## Description

Battery Type: Li-ion Polymer battery Capacity:  350mAh  Nominal Voltage: 3.7V  Pack Dimension: 5.0 x 20.5 x 37.0mm Weight: 10g  Working Temperature: Less than 60℃(140℉) Compatible Models: Sennheiser Flex 5000, RS 5000, Set 880Compatible Bat1tery Models: AHB571935PCT-03, BAP 800

## Features

- Replacement Battery for: Sennheiser Flex 5000, RS 5000, Set 880 Digital Wireless Headphones, AHB571935PCT-03, BAP 800
- 100% Compatible with original battery; 180 days warranty
- Capacity: 350mAh; Nominal Voltage: 3.7V
- Battery Type: Li-ion Polymer battery; Safe and reliable battery certified by UL, CE, UN38.3, RoHS
- Over 300 times cycle life; Long working time

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Item Weight | 8 Grams |
| Battery Weight | 10 Grams |
| Battery Cell Type | Lithium Polymer |
| Recommended Uses For Product | digital |
| Reusability | Rechargeable |
| Battery Capacity | 350 Milliamp Hours |
| Voltage | 3.7 Volts |

## Product Details

- **Number of Batteries:** 1 Lithium Polymer batteries required. (included)
- **Brand:** STARNOVO
- **Battery Cell Composition:** Lithium Polymer
- **Battery Capacity:** 350 Milliamp Hours
- **Recommended Uses For Product:** digital

## Images

![3.7V 350mAh Replacement Battery for Sennheiser Flex 5000, RS 5000, Set 880 Digital Wireless Headphones, AHB571935PCT-03, BAP 800 - Image 1](https://m.media-amazon.com/images/I/51XHJxPrdpL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Worked perfectly for Sennheiser Flex 5000 transmitter
*by C***S on July 1, 2023*

Got this to replace the stock battery that comes in the Flex 5000 transmitter unit for remote headphones. The original battery was getting low evidenced by the sound cutting in and out. This new battery fixed that. Recharges nicely and seems to be of equal or parallel quality to the original. A little overpriced imo but it works.

## Frequently Bought Together

- STARNOVO 3.7V 350mAh Replacement Battery for Sennheiser Flex 5000, RS 5000, Set 880 Digital Wireless Headphones, AHB571935PCT-03, BAP 800
- ELEGOO 120pcs Multicolored Dupont Wire 40pin Male to Female, 40pin Male to Male, 40pin Female to Female Breadboard Jumper Ribbon Cables Kit Compatible with Arduino Projects

---

## 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.lk/products/326535078-3-7v-350mah-replacement-battery-for-sennheiser-flex-5000-rs](https://www.desertcart.lk/products/326535078-3-7v-350mah-replacement-battery-for-sennheiser-flex-5000-rs)

---

*Product available on Desertcart Sri Lanka*
*Store origin: LK*
*Last updated: 2026-02-07*