T420 battery goes straight to critical.
My battery would randomly go to critical all of a sudden. It goes from 70% then to 5% after an hour of standby. I doubt an hour of standby will drain 65% battery. A couple seconds after resuming from standby, lenovo and windows battery meters shows the sudden drop. I get a warning of critical battery and the computer auto-shuts off.
I don't know why this happens. My drivers are all updated. I reset my battery last month. This battery only has 15 cycle count while my old t61's battery had over 200 and was 4 years old without battery problems. Could it be a possible defective battery? This doesn't happen often but when it happens once every 3 or so weeks, it's extremely annoying.
Does it drain normally if you use it from 70% to 5% or does it also do a sudden jump?
W520: i7-2720QM, Q2000M at 1080/688/1376, 21GB RAM, 500GB + 750GB HDD, FHD screen
X61T: L7500, 3GB RAM, 500GB HDD, XGA screen, Ultrabase
Y3P: 5Y70, 8GB RAM, 256GB SSD, QHD+ screen
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TarahCurrie Sep 10, 2014 3:48 PM
Restore From Time Machine Backup
Reinstall OS X
Get Help Online
Disk Utility
MacBook Pro, Mac OS X (10.5.8)
You are running 10.5.8
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I thought I would never be here, but I am.
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