SRAM eTap CR2032 lifespan

Discuss light weight issues concerning road bikes & parts.
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solarider
Posts: 492
Joined: Tue Nov 23, 2010 9:08 pm

by solarider

After a solid 6 months of using my SRAM eTap HRD Disc groupset on my Winter bike, I pulled my Summer bike down from the hook after 6 months of not being used to find that both of the CR2032 batteries in the shifters had died over the winter. Admitedly the weather has been cold, and the groupset is now 2 years old, but how long are people getting out of their shifter batteries?

Alpine318is
Posts: 127
Joined: Tue Aug 18, 2015 6:30 am
Location: Seattle, WA

by Alpine318is

I replaced them at the start of every season when I pull the bike out of the rafters and get it all set up again. CR2032 are so cheap
2012 Specialized Venge S-Works
eTap
Enve Classics

by Weenie


solarider
Posts: 492
Joined: Tue Nov 23, 2010 9:08 pm

by solarider

Not a cost issue. Just surprised since the bike hadn't moved, the mech batteries were removed that they had drained over the winter.

Krackor
Posts: 260
Joined: Tue May 31, 2011 9:48 pm

by Krackor

I installed mine Mar 2016, still going strong today with no battery changes. Status lights on the shifter paddles are green. (Do they turn orange/red when they are low like the derailleur batteries do?) I probably have about 10-15,000 km on those batteries, and I leave the bike idle in the basement for a couple months in the winter.

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wheelbuilder
Posts: 447
Joined: Wed Feb 08, 2017 2:10 am

by wheelbuilder

I replaced mine at year 2. They weren't dead, but thought it was time to be safe.

sungod
Posts: 1566
Joined: Fri Dec 24, 2010 9:37 pm
Location: it's raining, it must be uk

by sungod

the manual says two years life, though mine are now past that by a month or so

i check each week that the indicator is still green

according to the manual once it goes red there's supposed to be at least a month left, flashing red means it really is time to change

i'd just change at the first red

glander
Posts: 40
Joined: Sat Feb 24, 2018 3:07 pm

by glander

Mine are working great after two years, still green.

grover
Posts: 1127
Joined: Mon Jul 26, 2004 1:06 pm

by grover

Mine are still showing green after two years.

by Weenie


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