I have a Braun Syncro 7505 model that is 3 yrs old. I use it 4-5 days each
week. I have no idea whether this unit has easily replaceable batteries, or,
like so many other things, the idea is for you to discard it and get a new
one when the batteries fail.

How long should they last, and, how easy is it to replace them when they
die? The cutter / foil replacement is so damn expensive on this thing that
it should be kept viable just for the investment made in THAT.

Thanks,
Bee