neocell said:
I'm with mklos with the good vs bad battery hypothesis. The batteries I got with my BT mouse lasted for ~3 months, then the replacements I've used have lasted only a couple of weeks.{snip}
The batteries that came with my Apple BT mouse were lithium, which
last much, much longer than alkaline. Another plus is that lithium
batteries seem to weigh half as much, which reduces the weight-gain
of going from an Apple standard mouse to BT. I have been looking for
lithium batteries locally, but they aren't easy to find. Last time I priced
them a few years ago, they were $5.00 for a 4-pack. Maybe cheaper now?
Not bad for 6 months of use!