So my phone has developed a new problem over the past few weeks: charging no longer (ever) seems to take the battery back up to 100%.

When you plug the phone in (either to a charger or USB cable), if the battery needs charging, the light will turn red. In the past, it would stay red until the battery had reached 100% and then it would turn green.

A few weeks ago, I started noticing that the light wouldn't stay red for very long, and would go green quite soon. If I looked at the battery meter on the today screen, it would say 100% as long as it was plugged in, but once I unplugged it, it would drop down to a much lower reading.

I first noticed this when I had the phone plugged in to my laptop via the USB cable, but last night I had the phone plugged in to the wall with the regular charger all night (with the phone turned off) anand when I unplugged it this morning and turned the phone back on, the battery only showed 82%.

What's worse, if the phone is on, even if I have it plugged in, the battery will actually drop in value -- I had the phone plugged in to my laptop at work on Thursday all day and while I was there it dropped down to 25% even though it was connected to the laptop the whole day.

What SEEMS to be happening is that the phone stops trying to charge the battery long before it's fully charged -- though of course I don't know for sure if that is the real problem or if perhaps the meter has just become wildly inaccurate.

Has anybody else seen anything like this? It's definitely new: I've had the phone for several months now and it always used to reliably charge to 100%.

I noticed that trying to use the USB to charge took a very long time. I think that the phone probably requires more juice than USB is able to supply, but don't quote me on that.

I haven't ever had it claim to be fully charged, but not be. I've pulled it off the charger when it shows 100% but is still actually charging (red LED vs. green LED) and had it drop to around 90% after a few seconds though.

Yeah so my problem seems to be different from yours. For me, the light just goes green way too soon (even if I'm charging with the regular wall charger), and it seems to just stop trying to charge. The fact that it would go from like 75% to only 82% after being plugged in to the wall for 12 hours indicates that something isn't quite right.

I'm going to try running the battery all the way down and see if it behaves any better.

supposedly if you run the battery all the way down till the phone shuts itself down it will "recalibrate" the battery meter and charge more completely.

USB wont charge the phone at full speed UNLESS there is an active compliant USB host that responds to the saga's request for more power. Otherwise the saga will only take a small amount of power from the usb port it's connected to and will take a LONG time to charge. It's part of the USB standard. Seems many phones ignore it but the saga actually plays by the rules.

The USB also charges at a slower rate, you can adjust it via the registry, but you're treading in dangerous waters there.

Try letting the battery die completely. I mean dead, will not turn on dead. 100% empty. Recharge it and then see if it behaves better. Lars posted (i think it was him) a really tight article on Li batteries not too long ago.

Yeah. I'm going to have to try the "run all the way down" method. Running "almost all the way down" didn't help . It still stops charging way too soon (whether on USB or the wall charger or the car charger). Thanks for the advice!