2x BA 300 Batteries for Sennheiser RR 4200 RR 840 HDI 830 RI 830 RI 840 Set 840 TV Listening System Headset 150mAh + BA300 Charger & USB Charging Cable  ...  more

Get the true TV sound experience for longer with this 2x replacement Sennheiser battery, charger & charging cable bundle from CELLONIC® - 100% compatible Sennheiser BA 300 charger for Sennheiser RR 4200 batteries & more. 

This 2x CELLONIC® Lithium Polymer high-performance, rechargeable TV listening system headset battery for Sennheiser RR 4200 & charger pack is the perfect Sennheiser wireless headset battery replacement, giving you long-term, reliable use – with longer breaks between charges.

Specifically designed for use as a BA300,BA 300 replacement wireless TV headset battery, with 100% compatibility for Set 840 TV, RS 4200, RI 410 earphones and more.

Long runtime, full compatibility: 2x Sennheiser Set 840 TV, RS 4200, RI 410 batteries with 150mAh high capacity
✔ 100% compatible replacement – Replaces your original Sennheiser BA300,BA 300 battery
✔ Long battery life, high capacity – 3.7V high conductivity headphone battery, 150mAh high capacity
✔ No capacity loss – thanks to modern Lithium cells without memory effect technology
✔ Fewer charging breaks – less time spent waiting for your headphones to charge 
✔ Wide compatibility – replacement headset battery fits a wide range of Sennheiser TV headphones - a perfect Sennheiser HDI 830 battery, Sennheiser RR 840 S battery, RI 830 battery replacement, Sennheiser RI 900 battery replacement & many more.

Proven quality, certified safety: Sennheiser BA300,BA 300 replacement batteries for up to 1000 charging cycles
✔ Long-lasting, consistent performance – high-quality Lithium Polymer cells for up to 1000 charging cycles
✔ Certified safety – CE & ROHS certified, Grade A battery with short-circuit, overheating and overvoltage protection
✔ Suitable for – sub-zero and high temperatures - particularly weather and temperature resistant
✔ Thorough, comprehensive testing – each battery cell is tested to ensure all safety requirements are met and that it holds and maintains the correct capacity - all before installation 

BA 300 dual charger with USB charging cable bundle
✔ High speed, fast charging – less time wasted waiting for your batteries to charge
✔ Dual charger – allows you to recharge two batteries at once
✔ USB charging cable – charge your batteries from any USB power source

2x Replacement BA300,BA 300 battery for your Sennheiser Set 840 TV, RS 4200, RI 410 TV listening system
Brand: CELLONIC® Headset Replacement Battery
Capacity: 150mAh
Voltage: 3.7V
Cell Technology: Lithium Polymer
Alternative for / Replaces: Original BA300,BA 300 battery 

★ 3-Year Guarantee ★
As an international specialist retailer since 2004, we know what matters when it comes to high-quality replacement headphone, headset & earbud batteries. That's why our replacement Sennheiser batteries come with a 36-month guarantee!