Sennheiser Replacement Rechargeable Battery for OfficeRunner Wireless Headset DW Office DW Pro1 DW Pro2 SD Office SD Pro1 SD Pro2 MB Pro Series Li Polymer 205mAh (1 Pack)

Bought it to replace the battery in my headset at work. Lasts a long time between charges.

My unit is over 12 yrs old, and was only charging to one bar. While there were discount batteries, given the longevity of the original, I went OEM. Charged to four bars over night - a good (sound) investment. Highly recommend. Be careful, the plug is in there firm and don’t break those small wires - I was concerned, but everything went well.

This product is the same as the one that came with my headset. Great price also!

It works just fine. I was getting a lot of interference with the headset and thought it was the battery going bad. The issue still exists, so it has to be the headset.

The battery worked well for about 6 - 8 months, and then it wouldn't hold a charge very long, and I have to charge it multiple times during the day. It's best to just pay the money for a genuine Sennheiser battery. My original batter lasted for 5 years before it stopped holding a charge for a long period of time.

This replacement battery worked exactly as I expected. Nothing more... nothing less. So far, the headset is being powered just fine. Easy install... no fuss. Good replacement battery.

Easy install and working great!

I'm on the phone all day and it stays charged for at least 10 hours.