I was looking for a solution not immediately having to buy new handsets. Finally, the researchers assumed that it will be only on low battery. But the research I got some doubts how complicated the battery replacement would be and whether I as a layman can do that so well. Then I decided to go for the biggest battery and collected all my courage. But the instructions from this supplier is really great and what can I say both handsets work perfectly. The power increase is clearly noticeable. I just hope that continues for a while ;-) Can the batteries and the description, by the way online without paperwork, highly recommend!
