so overly much really you can not now write to a battery, but a bit enough already, I think.
Usage were my two car keys with radio. Got the same battery brought in advance, as I was anticipating, again they would be relatively quickly. So far, namely gabs only disappointment with non-functioning or quickly emptied batteries (~ 1 month).
I am pleasantly surprised by this battery, it keeps for months now in daily use. Advantageously, I also found that each battery comes in a separate blister, so I was in the trunk which deposit on stock (my ZV does not work manually, so I am dependent on functioning radio key).
Clear recommendation with a clear conscience.
Greetings!
Update 11.12.2014 = The first battery will continue to function properly, despite daily repeated use.