HQRP - 5-Pack BA300 Battery 3.7 V 140 mAh Li-Polymer Replacement for Sennheiser Set840 Set830 RS4200

Keep your Sennheiser listening system running with this 5-pack of replacement rechargeable battery packs designed to restore portable operation and extend listening time when the original battery no longer holds charge. Each pre-assembled Li-Polymer pack is engineered for stable performance and long service life, making it a practical choice for conference, headset, and receiver use where reliable runtime matters and quick battery swaps reduce downtime. Replacement for BA300; compatible with Sennheiser RI830 / RI830-S / RI900 / RR4200 / HDI830 / IS410 / RI410 / Set840-S / Set840-TV / Set900 / Set830 / Set830-S / Set830-TV / RR840 / RR840-S / RS4200. Built to work with Sennheiser charging cradles and docks, these packs help maintain a secure charging connection so you can keep spares ready for daily listening, meetings, and prolonged events. Disclaimer: This is not an Original Equipment Manufacturer (OEM) product, HQRP branded product is a replacement. All brand names and logos are registered trademarks of their respective owners. Any use of the brand names or model designations for this product are made solely for purposes of demonstrating compatibility.