2 replies to this topic

[franklar]

Since the last 2 or 3 month I'm experiencing an issue that seems to be fairly common on other devices (ie: Xperia Arc and some Motorola's): while the phone is partially or fully charged, or even connected to the charger sometimes, the battery level indicator suddenly drops to ZERO, or it shows a question mark, lockscreen says that battery is depleted and needs to be charged.
UI becomes completely unresponsive and it does not recover in 95% of cases, so I have to pull the battery and boot again. Sometimes it does it again 4 or 5 times, sometimes the problem doesn't show up for an entire day.
This seems to be random, but more frequent during some power hungry task like google gps navigation.

This is what I found about Xperia Arc issue http://forum.xda-dev...d.php?t=1312398
seems like an hardware failure of the fuel gauge chip sensor, so they someway patched the kernel and replaced the "0%" misleading information with a software esteem of the remaining charge. All goes smooth except for that if charge is overextimated and battery actually empties itself, phone turns off with no forewarning.

By the way it seems like I'm the only unlucky liquid owner with this kind of problem. I'm investigating on it since i like this phone and I'd have no reason to change it otherwise. Sadly reflashing the official bin, updating any custom ROM or resetting battery stats did not help.








(not a shot from my phone, just to show what happens)

[siggey]

Some problems using phone while charging, but not like yours. Sometimes the phone lag a lot (on liquidnext 1.9.2) while charging and freezes, but no issues with battery indicator.

[franklar]

Can't find any info about the particular fuel gauge ic S100 ships with. Block diagram from Acer is no help to me, Sony Xperia has a Texas Instrument chip I can't see here.

Any chance that this circuitry is integrated directly into the battery?

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