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PowerTap 2.4 wireless mountain bike hub battery replacement

I’ve been rolling my mtb disc 2.4 wireless PowerTap hub in circles since April with the factory installed batteries. About 15 hours of riding ago the battery low icon started to flash. Tomorrow I have a ride planned I really want to have power data for and would be bummed if it pooped out mid workout.

Changing the hub batteries requires first removing the disc.

Then unscrewing the battery cover with the cute tool provided with the PT.

Here is what it looks like inside.

There is a little battery pack that pops out.

The batteries took a bit of wiggling to get out but the new ones slid right in.

Then reverse all motions. The process was painless except for getting the plastic battery cover back on. It screws down on metal threads and was tough to get aligned and screwed down without crossing threads. That took a few extra minutes of wiggling too.

Once back together the system was ready to roll. No further finagling required. I should be good to go for another 400 hours of PowerTap love. Tomorrow is only scheduled for 90 mins…
By Lynda Wallenfels Google+

  7 comments for “PowerTap 2.4 wireless mountain bike hub battery replacement

  1. Avatar
    December 5, 2008 at 4:13 pm

    My what manly hands you have Lynda!

    How is the mtb PT working? I recall you had a few issues testing some different models a while back.

  2. Avatar
    December 5, 2008 at 5:06 pm

    Ha ha, that is a girl trick. Invite your boyfriend over for the evening, whip out the tools and parts, struggle loosening the first bolt and hey presto he takes over…

    The mtb PT’s are working superbly – no issues at all. Dave has an updater on the way for his hub which enables compatibility with ANT+ devices such as the Garmin Edge 705. Then we can have power, heart rate and gps data all on one file. That is another post.

  3. Avatar
    progressive cycle coaching
    December 30, 2008 at 12:07 am

    using technology today with any equipment today has always been an add on to the product. As we can see today the youth is taking to much interest in cycle sport but at the same time proper coaching is also needed for this grueling sport.

    Good work lynda..!!!!! šŸ™‚

  4. Avatar
    progressive cycle coaching
    December 30, 2008 at 11:05 pm

    Thanks for guiding us to the process..!!!

    progressiv cycle coaching

  5. Avatar
    May 11, 2010 at 2:33 pm

    Hi, I wonder if you can help me. I want to buy the MTB powertap but I can’t decide whether to buy the Disc or non-disc. at the moment i’m using v-brakes and may be in the future will upgrade to disc. If i buy the disc I can still use it for v brakes as long as my rims are compatible right? is it safe to ride the hub with the rotor attached? and any idea about the weight without the rotor? thank you hope you can help me decide.

  6. Avatar
    May 11, 2010 at 3:34 pm

    Buy the disc version and a pair of disc brakes too!! Upgrade now, disc brakes are so much more powerful.

    You can build up the wheel with a v-brake friendly rim too like you described.

    I don’t know weights. I’d look first on the PT website.


  7. Avatar
    May 12, 2010 at 12:24 pm

    Thank you. I will.

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