3x BA 300 Batteries for Sennheiser RR 4200 RS 4200 RR 840 RI 410 IS 410 HDI 830, Sennheiser Set 840 TV - 500898 / BA300 Replacement Headphones Battery Pack - 150mAh  ...  more

Whether you’re working, gaming, watching TV or listening to music, these replacement Sennheiser batteries from CELLONIC® will keep you charged for longer - 100% compatible Sennheiser RR 4200 batteries, Sennheiser RR 840 batteries & more. 

This 3x CELLONIC® Lithium Polymer high-performance, rechargeable Bluetooth headset battery for Sennheiser RR 4200 pack is the perfect Sennheiser wireless headphone battery replacement, giving you long-term, reliable use – with longer breaks between charges.

Specifically designed for use as a BA 300 battery replacement for wireless TV listening systems, these batteries fit Set 840 TV, RS 4200, RI 410 earphones and many other models.

✔ High-capacity, long battery life – High-quality, high 150mAh capacity, long-life Sennheiser 840 TV headphones battery.
✔ Reliable replacement battery – modern, Lithium cells without memory effect holds its charge over longer periods.
✔ Certified safety and quality – CE & ROHS certified, Grade A BA300 battery with short-circuit, overheating and overvoltage protection.
✔ Thorough, comprehensive testing – each battery cell is tested for optimum capacity and to ensure all safety requirements are met – all before installation.
✔ Wide compatibility – replacement headphone battery fits a wide range of Sennheiser TV headphones - a perfect Sennheiser HDI 830 battery, Sennheiser RR 840 S battery, HDI 830 battery replacement, Sennheiser EKI 830 battery replacement & many more.

CELLONIC® BA 300 Battery Specifications:
Capacity: 150mAh
Voltage: 3.6V - 3.7V
Cell Technology: Lithium Polymer
Dimensions: 25,3 x 32,7 x 8mm
Model: BA 300 / BA300 / 500898 Battery

★ 3-Year Guarantee ★
CELLONIC® headphone batteries stand for high-quality and certified standards – that’s why they come with a 3-year guarantee!