1. Denial
2. Anger
3. Bargaining
4. Depression
5. ACCEPTANCE
show me one piece of supporting evidence for your claim of zero potential difference charging. If you could charge something using the exact same voltage what would decide the direction of power?
also of course i remember where i work, i'm going back there tomorrow, so expect to get a bunch of AC replies (i don't think they have
The charger isn't being hooked up in series, the phone battery and the phone internals (processor, screen, modem) is connected in series (which is why the battery and the phone gets the 5 volts it needs from a usb plug). Try taking the battery out of your phone (if possible), then plug it into the charger, you will notice nothing will happen. This is because, power flows from the power lines into your home, through diodes and transformers, into a some kind of plug, THEN INTO THE BATTERY, THEN INTO THE PHONE (that is how series works, one then the other, different to parralel which is both at the same time), then from the phone internals back to the battery, and then back to the plug and charger to complete the circuit. The phone and battery being hooked up in series, has absoultly nothing to do with which way the charger is hooked up (you still need to connect positive to positive and negitive to negitive) it would be the same even if you connected your phone internals and battery in parralel (although then you would need twice the volts to charge (because the voltage is being split between two sources) then as your battery got close to being fully charged, the internal resistance of the battery would increase, so you'll be sending more and more volts straight to the phone (which could blow it up)).
Power flows from the source with the highest potential; nothing will happen if you manage to connect two voltage sources that are exactly the same; when you charge your phone, all the volts go to both the phone and the battery, it is the amps that get split between the two; check it out with your physics teacher if you don't belive me.
Those who do not understand Unix are condemned to reinvent it, poorly. -- Henry Spencer