TP2 Not charging to 100% . . . Anyone else?

[dgourd]

Even the professionals debate that. But since it wont actually damage the battery, its a good idea to drain it just in case.

[aamon17]

Thanks everyone for the replys. I have calibrated both batteries. Good or bad, that's already done.

I wasn't aware of the "trickle" issue. Sounds kinda nasty IMHO! LOL! But it's good to know mine isn't an isolated issue. I can live with the immediate percentage drop. Just wanted to see if anyone else was experiencing the same.

Thanks again. I'm going back to hit the "Thanks" button where appropriate.

[shaggylive]

Originally Posted by correct

like i said, lithium batteries have zero memory effect, so conditioning a lithium ion battery is useless. conditioning a battery is an old school method used on ni-cad batteries to avoid creating a memory effect, thus lowering the battery capacity. i know it's hard, but you gotta shake them old habits.

it's not conditioning the battery, so much as calibrating the phone to the battery. and I think it's actually better that way the phone doesn't try to overcharge the battery, even thought the circuit prevents this, the phone still tries.

[IM0001]

I can vouch for the phone not charging once it turns green. While riding my bike it tends to overheat when charging + using radio (for internet radio) Not nearly as easy or as much as my TP1 but it still does it. It seams this phone makes a lot more heat while charging then the radios do (which was backwards on the TP1)

Anyway while watching the charging patterns you can see it reach 100% for about 10 minutes as it gets closer and closer to full. (the LED is still orange but it reads 100%. I can watch the phone go from full charging at 878mA slowly decresing down to about 500-400mA. At around the point the battery hits 4.2V (give or take) the light goes green and the phone stops charging completely. It still reads 100% but will not begin charging again untill the battery drops to around 3.8v. Once it does that it will turn orange again and do the same charging cycle again usually stating its now at 96% Give or take. It is kind of a bummer the phone cannot run on AC power alone like past PPC's (my X50V for example) which in turn would charge the battery to full then leave it alone untill it is needed to power the device. For some reason in the latest battery app for the TP2 from nuetools, the options seam to do very little or nothing on my phone. I wish he threw out a readme so I could understand what the checkbox for "allow phone while on AC with no battery" does and such. If that allowed the phone to continue to run while the battery reads 0% then that would be kinda nifty in my case.

[Paragon]

Originally Posted by correct

never completely drain a lithium ion battery... you'll do more damage than good. lithium batteries have no memory effect, so trying to condition them is useless, and unnecessary.

No, this is not entirely true. Draining the battery completely, occasionally, will not harm it. It is only harmful if done on a very regular basis. When you completely drain a Lithium battery once in awhile it it resets the calibration so that the reading you get is more accurate. This is much different from the old NiCad batteries that were conditioned to accept a full charge when fully drained. The same experts who tell you that it is harmful to regularly drain a Lithium battery are the same people who tell you to drain it on occasion to re-calibrate the readings.

Also keep in mind that the readings that cellphone show for battery level are seldom acurate. Being off by 5-7% is probably pretty normal.

Dave