Power option

I know that all you hack-heads already know this, but I just discovered a Power option in WinMo, to turn off charging when plugged into USB. I think this is great, as I plug my TP2 in so it stays synced, every time I return to my desk. With this option, I don't wear down my battery, which has a limited charge/discharge reversal life.

Memory, just means that their capacity isn't diminished. It has no relevance to how many times you can reverse the current (charge/discharge). If it was only 200 and you plugged it in twice a day (home and office, say) you would get less than 6 months of usage.

Unfortunately I don't have any inside gos. on the battery life, so I am just highlighting this feature to anyone who hasn't seen it before.

Can i know where is the power option located?

just so you dont have to wonder if its the same or not even though no one has answered wich in itself says the obvious in regards to how you wrote the sentence

its the same on tp2

and for replying on battery life I give over the text to my frind wikipedia http://en.wikipedia.org/wiki/Lithium-ion_battery
theres some really interesting info on the li-ion battery w for example how you should treat your battery, what dif metals that is used and their respective effiency in keeping a current, how much battery power you loose/year in regards to how hot it is etc etc... recommended reading for the information seeking people.

Well as far as i know first of all the 3 first times you use your batterie when its new either in da phone or a brand new battery it must go 0(the phone goes off cause of empty battery) to 100(the phone goes 100% full:)) 2 or 3 times... Anyway as for the charging i rememeber have readed, cannot remember where though, that TP2 stops charging when it gets full so it doesn't overheat but it did not say about the charge via usb so i am not sure this works there also but i am sure about the normal charging. As soon as the phone goes full it cuts the electricity provide to the phone from the charger... And it was to be expected after ppl dieng cause talking to phone whne it was charging and KABOOM

I have actually heard of a computer programmer use his laptop for so long, it exploded and he died.  Sad, but funny at the same time.  May he rest in Binary Heaven.

a battery memory, is when you say recharge it at let's say 40% all the time, what ends up happening, is the battery looses it's ability to hold a charge as well for anything above that 40%. Due to the fact that you will get 1.4x the recharge cycles you "wear down" the battery faster.  This was a common problem in NiCad Batteries and in fact this specific problem  (with the name battery memory) only happens in NiCad Batteries (or very similar, but NiCad's are the only ones which are major consumer batteries)

When you discharge the battery below lets say 10% than there is no molecular change causing the battery to only want to hold 10% of it's total charge.


A problem that Lithium Ion Batteries can have is that if you deep discharge them (that means getting them right down to zero volts (or pretty damn close) multiple times, they can loose capacity.
This happens because (like any battery) they are made up of multiple cells, which unfortunately aren't identical. by discharging so low, some cells go to zero before others, and then actually start to get a negative voltage. because the other cells that still have a small charge will still force current through the already dead cell.

a dead cell does not mean there are no more electrons it simply means the electrons on the anode side of the cell are balanced with the positive charge of the cathode side. but when current (flowing electrons) are being forced in to the cathode by other cells, additional electrons will flow from the anode, once that voltage (standing electrons) on the cathode dissipate (due to the other cells dying) the electrons that were pushed off the anode are not returned and so the anode ends up more positive than the cathode (this is bad).

if this happens enough times (or in a strong manor) than the molecular structure changes and the cell stops holding a charge at all ( the anode becomes more positively doped so it won't hold electrons. )



 

well sony had a major mallfunction on one of their production batteries for notebooks, wich under the correct circumstances created a short circuit in the battery
wich then created a enormous heat that caused the notebooks to set fire.
this happened in such a short amount of time so it might have been confused for an explosion.
the recall program for those batteries is still ongoing with most of the manufacurers that had that series in their notebooks.
manufacturers that had those batteries where if I dont remember uterly wrong
Dell HP/compaq apple ibm/lenovo sony and probably a couple of more that I cant remember



I can say one thing without hesitation if you discharge the battery to 0% charge left you render the battery dead if theres no fault in the chip for the battery controlling it.
you could revive the battery by charging it with low v/a for a longer period of time
wich isnt to good for the battery but it jumpstarts the battery after a couple of days (or if unlycky sets fire to your house/apartment).
but if all is well and dandy with your phones software it will shutdown saying theres 0% battery left when theres actually 10-15% charge left so that it has enough voltage to be able to charge the rest of the battery.

if its good to discharge and charge it fully a couple of times I dont know, but I do it myself out of old habbits.