Originally Posted by tetonrider

hey, rev--when did you purchase that unit? was it before or after 2012?

i'm pretty sure that is when the changeover to higher capacity batteries occurred. if you have an older unit, then a battery dying in 2 years is possible.

if you have a newer road unit, then that really should not happen. most units have battery life >=1,900h (the shimano unit is rated for 3,000h).

this varies a bit depending on usage (long periods of inactivity are worse), and most units get longer life than rated.

sounds like either (a) you have an older unit, (b) you have a MTB or other unit (those are physically smaller due to need to accommodate smaller rings, so smaller batteries as well, or (c) there is a problem.

my guess is (a).

if it's (c), either contact SRM or shoot me a note.