(device: Samsung Galaxy S 3)
I've just witnessed something rather strange: while tethering to my laptop, with the phone being plugged in a power source (the charger I got with the device) - the battery percentage started going down.
Now, I'm in an area where the signal is pretty bad, and my phone is constantly switching between 3G and some H+ network. It's normal for the battery life to suck.
However, isn't the phone supposed to power itself directly from the charger?
I thought that the charger was both powering the phone and recharging the battery.
Now it seems that the battery is powering the phone - while the charger is only recharging the battery (and failing).
Is this correct?
Even more importantly: will this hurt my battery?
And another question: could I simply take my battery out and keep the phone alive only on the charger (e.g. this is possible with a laptop)?