[Q] Samsung Tab 7.7 - Battery Life & Warnings

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Hi there, I purchased my 7.7 Tab 3 weeks ago. Loved it as expected. I've got few concerns about the battery though. Hope someone can share solutions / experiences with me.

The battery life isn't so impressive as I heard about from reviews and all. It lasts hardly 48 hours after a full charging with no real use for more than 30 minutesx2 times within less than 48 hours. However, it was connected to WiFi all the time and was syncing as well (but on standby all the time). Now another bugging problem is that when I plug the charger after the battery having completely drained and the device is turned off by itself (before completing 48 hours), the screen shows a warning logo first instead of the charging icon. The warning logo has warning sign and the icon of a drained battery with a red color at the bottom of it. I do not know what does that mean. I just know that when that appears, the device is not charging at all. I have unplugged and plugged it back 3 times to get it charging again. So far, it happened two times and I am sure it will happen again but I just want to know whether this is the sign of an unhealthy battery or any other parts of the device? This happened to anyone else? Your feedback is welcome and well appreciated.

Install SetCPU.

Originally Posted by kable

Install SetCPU.

How setCPU solve that problem?

Sent from my GT-P6800 using Tapatalk 2

Originally Posted by terraccan

Hi there, I purchased my 7.7 Tab 3 weeks ago. Loved it as expected. I've got few concerns about the battery though. Hope someone can share solutions / experiences with me.

The battery life isn't so impressive as I heard about from reviews and all. It lasts hardly 48 hours after a full charging with no real use for more than 30 minutesx2 times within less than 48 hours. However, it was connected to WiFi all the time and was syncing as well (but on standby all the time). Now another bugging problem is that when I plug the charger after the battery having completely drained and the device is turned off by itself (before completing 48 hours), the screen shows a warning logo first instead of the charging icon. The warning logo has warning sign and the icon of a drained battery with a red color at the bottom of it. I do not know what does that mean. I just know that when that appears, the device is not charging at all. I have unplugged and plugged it back 3 times to get it charging again. So far, it happened two times and I am sure it will happen again but I just want to know whether this is the sign of an unhealthy battery or any other parts of the device? This happened to anyone else? Your feedback is welcome and well appreciated.

sometimes... the cable is the culprit... a damage cable will gave the same error... btw.. it is not advisable to really drain the battery dry before charge it... but that just my opinion... just try to check the cable... and if there is anyone around you that having the same cable... test to charge your device with their charger...

Originally Posted by kable

Install SetCPU.

and wtf are you talking about...

Originally Posted by terraccan

Now another bugging problem is that when I plug the charger after the battery having completely drained and the device is turned off by itself (before completing 48 hours), the screen shows a warning logo first instead of the charging icon. The warning logo has warning sign and the icon of a drained battery with a red color at the bottom of it. I do not know what does that mean. I just know that when that appears, the device is not charging at all. I have unplugged and plugged it back 3 times to get it charging again. So far, it happened two times and I am sure it will happen again but I just want to know whether this is the sign of an unhealthy battery or any other parts of the device? This happened to anyone else? Your feedback is welcome and well appreciated.

First of all, you may not want to have left the battery completely drained, as this might damage the battery. Secondly, since your battery is completely drained, some undercurrent protection mechanisms must be activated, and there should have enough input current before the battery could be charged again. The data cable should not have enough current to charge up the battery at this state, it is lucky for you that you got it charging again after three trials.

If you drained up the battery again, it's recommended to charge it up with the AC charger.