Palm O2 Sensor failed that quick?

[rjack321]

With the cell being a little over a year and 3 months old, it seems like it should have plenty of life left.

The date you received the analyzer and the manufacture date aren't necessarily the same.

Cells degrade just sitting in air. 15 months is normal in hot climates especially.

 

[Thunder Struck]

The date you received the analyzer and the manufacture date aren't necessarily the same.

Cells degrade just sitting in air. 15 months is normal in hot climates especially.

The DGX Palm meter had a cell dated about a month before purchase date.

The failing I was pointing out was that it went from reading 33% just fine to less than a week later struggling to get to 10.

But Palm still popped in a new sensor and did an update to the board at no cost, so props to them.

 

[rjack321]

The DGX Palm meter had a cell dated about a month before purchase date.

The failing I was pointing out was that it went from reading 33% just fine to less than a week later struggling to get to 10.

But Palm still popped in a new sensor and did an update to the board at no cost, so props to them.

That's a common failure mode, aka "falling off a cliff". They don't necessarily fail linearly down in the typical OC range since it doesnt take much voltage at all to read 33% vs say 100+%. If you'd put a bottle of 100% on it a year ago if may not have read anywhere near 100%. That would have been a sign it was already getting weak back then.

 

[randini]

I've had the same battery issue in 4 of the 5 that I have been around (I have never bought one and would not buy another). I've tried cardboard plugs and they work for a while before starting to fail again. I'll get some earplugs and try that. Nice tip!