Posted also on ww but reposting here for more visibility. Been using it for 1 year no issues. This morning my Bolt v2 didn’t pick it up. I changed the battery, same issue. I calibrated it manually (I never do it since it has auto calibration) and the torque returns was -32700! I tried with the AXS…

FWIW mine has been sent back to SRAM and they declared it a replacement under warranty. Annoying they are “out of stock” for like 6 weeks, which is odd because they are very available from many different online stores. I’ll probably just buy a new one and sell the warranty unit when it arrives.

It scuffed up the battery going through the ‘icky taste’ layer? I’ve used Purell wipes, or those wet workshop wipes that come in the big jugs. Never had a battery problem. I get the Duracell 2032’s at Costco because I can get a whole big card of them for a decent price, and they are coated so the wi…

[image] Manny76: I unscrewed the battery compartment screw by 1/4 of a turn, then screwed everything back and magic, it works. Calibration shows a healthy 20. I am puzzled. How is this fixing the issue I have no idea. That is the exact behavior mine was having and it was the loose screw on th…

Yes, and it now works perfectly. This is so strange. How does this fix the issue?

If that screw gets loose, the spring’s electrical connection becomes inconsistent. It seems like sometimes it would just shut down, other times just acting weird (likely due to voltage drop).

I have 1 year warranty left. Do you know if this screw thingy fixes the issue permanently or if it’s a patch? It works fine now, and I don’t mind redoing this trick every year, but I would get it replaced under warranty if it’s safer and allowed and prevents a more serious defect once I am out of th…

I think an intermittent contact in the battery compartment is a minor issue. It’s been years since I cinched the screw in mine down and it hasn’t come loose since. My pm doesn’t seem any worse off for the experience (though keep in mind I have an older model than you). Could some lurking damage have…

I would echo @gcarver experience. I had to tighten the battery compartment screw, and everything has been fine (~1 year since I did this) since. So this feels just like any other bolt: given the rattles that a bike goes through, bolts can come loose. You tighten them, all good again, no big deal.

I’ve had the screw work loose on a couple quag pm’s. One was about 8 years old when it happened, the other about 4 years old. Coincidentally, they had the issue within a month or so of each other. Going forward, I just plan to check that screw whenever checking over the bike (big maintenance or p…

Is there any other way to fix it? I damaged the duracell battery yesterday.

Quarq DZero Dub PM suddenly not measuring power

Equipment

Manny76 April 11, 2024, 6:28pm 24

Been a week since this and it has been stable. Will tighten it once per year as a normal maintenance thing.
Thanks for all your inputs.

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Quarq DZero Dub PM suddenly not measuring power

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