I got my Galaxy Tab about a month ago and love it. I have one question though. When I plug it in to charge it likes to turn on the screen once it is fully charged. Is there a way to turn this feature off? It isn't a problem most of the time but when I am charging it overnight after draining most the power I'd prefer the screen not to come on. I just worry about possible burn-in over time.
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Screen Turns On after Recharge
- Thread starter MrDeeJ
- Start date
tyler79durdan
Member
Maybe you should charge it in an off state as opposed to on. I dont seem to have issues with my tab. then again I dont charge any of my devices while powered on, or before completely depleting the battery, and i dont take them off the charger until they have completed the charge. I dont use the device while charging either. These are my charging habits, and I NEVER have battery issues, or this screen issue you complain of.
D
Deleted User
Guest
That's not normal behaviour. The device will activate the screen for a minute after it's fully charged so you can see it has completed charging, but should turn the screen off and go back to sleep mode. Something is causing the Tab screen to stay awake. Perhaps an app you installed is causing the device to wake up after charging. I would suggest doing a factory reset to wipe the device clean, set it up again and see if the device stays awake after charging. If not, then you know the device is ok and something you installed caused the odd behaviour.
As for battery usage, do not listen to tyler79durdan. His suggestions applied to older technology like NiCad or NiMH chemistries that work best when depleted regularly.
Li-Ion batteries work best and last the longest when topped up rather than depleting them. They do not have any kind of memory effect so you can put them on the charger whenever you want to top them up. It's MUCH better to top them up from 30% or more than it is to deplete the battery all the time. Depleting them actually reduces their life expectancy and number of charge cycles. If you can't get to a charger, then turn the device off to save the battery rather than deplete it. The worst thing you can do is run it down to 0% as Li-Ion batteries have their own built-in monitor IC chips which control charge and discharge rates and levels. If the battery drops to 1-3% and you can't charge it right away, there's a chance that the battery will fully deplete itself before charging occurs. Then for safety reasons the IC protection will kick in and prevent charging of the battery again. If you run the battery down to the low battery warning (usually ~20%), either put it on the charger immediately, or turn the device off and charge it as soon as you can.
Also, you can use the device while charging, although I simply charge it up overnight so it's ready to go in the morning. You can't overcharge it either as the charge current is completely shut off when the battery is fully charged. You can also do partial charges, such as topping it up from 30% and you have to leave with it and it only achieves 80%. That's fine too and you can simply top it up again when you get home.
Just remember that you NEVER want to run a Li-Ion battery all the way down. Top it up instead. If you don't trust me, you can google for info or visit a site like Battery University for info:
How to Prolong Lithium-based Batteries - Battery University