At our Gigaset A16 after long use, the battery has been broken. This one fits perfectly into said device, both of the Kablellänge and the plug. Now, after 4-week use I can say that this battery lasts a lot longer than the old man. Sometimes it's uncanny how long he is still running after reaching the last battery bar. But that is the fact that this ad is well adjusted to the old battery. Clear buy for this battery in connection with the A16. I ordered at VHBW.