Guest yohanevindra Posted June 29, 2010 Report Posted June 29, 2010 I know that earlier they used to say you should never charge batteries until they completely discharge cos it was bad for the phone, but now its bad for the battery, cos each time you connect the charger, one charge cycle of the battery goes.. but with the nexus one, sometimes i charge it, then its fulle charged, and then may be i gotta connect it to my computer to transfer files or flash something, and then also its chargin..is it bad connecting the nexus one to the charger several times for the day?even tho its not fully discharged?or will it jus mean i have to buy another battery sooner..
Guest maxdakota123 Posted July 2, 2010 Report Posted July 2, 2010 It is been seen that when any device having batteries are connected through any other battery operated device through USB connection, that device get charged from that device.
Guest Posted July 3, 2010 Report Posted July 3, 2010 I know that earlier they used to say you should never charge batteries until they completely discharge cos it was bad for the phone, but now its bad for the battery, cos each time you connect the charger, one charge cycle of the battery goes.. This is old knowledge from back when laptops/portable devices used Nickel-Cadmium batteries, which are quite different from the lithium-based batteries in use now. Basically, charge it whenever you feel like it, it's not bad for the battery or the phone. For optimal performance, and calibration purposes (ie the little circuitry that tells you how much battery time you have left, it sometimes gets off so you need to do this once in a while), completely discharge, rest it a bit, then re-charge completely. That won't increase the battery lifetime but, as I said, will get the counter counting the charge more accurately. So, enjoy your phone, and don't use knowledge from 90s on 2010 technology :lol: sns
Guest P00rSpy Posted July 3, 2010 Report Posted July 3, 2010 (edited) This is old knowledge from back when laptops/portable devices used Nickel-Cadmium batteries, which are quite different from the lithium-based batteries in use now. Basically, charge it whenever you feel like it, it's not bad for the battery or the phone. For optimal performance, and calibration purposes (ie the little circuitry that tells you how much battery time you have left, it sometimes gets off so you need to do this once in a while), completely discharge, rest it a bit, then re-charge completely. That won't increase the battery lifetime but, as I said, will get the counter counting the charge more accurately. So, enjoy your phone, and don't use knowledge from 90s on 2010 technology :lol: sns A Lithium battery should NEVER be fully discharged period, it will destroy the battery life. As for calibration, it is usually based on a new battery, new battery are shipped with 37% charges (it's the point where the battery self-discharges the least) so a discharges to 30% should be a good point to recalibrate (Recalibration MAY be needed on badly designed charger/battery or with generic battery) As for the charges goes yes as many as you want so usb and other charging sources are welcome! (unless they are not able to supply enough current which is not a problem unless you use exclusively this source. This is why most docking provide an external supply) If your battery doesn't hold a charges try making longer charge/discharges cycle and at different rate for a few day then go back to charging as often as you can (each day, twice a day) P.S. Recalibration is need more on a laptop due to the physical organization in series of the battery cell (6-9 etc) where each cell can charges differently and discharges into each other, cell phone battery are not organized this way.. there's a very good post there on battery http://forum.xda-developers.com/showthread.php?t=669497 no urban legend... Edited July 3, 2010 by P00rSpy
Guest Shuflie Posted July 3, 2010 Report Posted July 3, 2010 A Lithium battery should NEVER be fully discharged period, it will destroy the battery life. As for calibration, it is usually based on a new battery, new battery are shipped with 37% charges (it's the point where the battery self-discharges the least) so a discharges to 30% should be a good point to recalibrate (Recalibration MAY be needed on badly designed charger/battery or with generic battery) As for the charges goes yes as many as you want so usb and other charging sources are welcome! (unless they are not able to supply enough current which is not a problem unless you use exclusively this source. This is why most docking provide an external supply) If your battery doesn't hold a charges try making longer charge/discharges cycle and at different rate for a few day then go back to charging as often as you can (each day, twice a day) P.S. Recalibration is need more on a laptop due to the physical organization in series of the battery cell (6-9 etc) where each cell can charges differently and discharges into each other, cell phone battery are not organized this way.. there's a very good post there on battery http://forum.xda-developers.com/showthread.php?t=669497 no urban legend... The battery monitor in your phone is smart enough to know not to completely discharge a lithium ion battery, which is why it turns your phone off before it is totally discharged.
Guest P00rSpy Posted July 3, 2010 Report Posted July 3, 2010 The battery monitor in your phone is smart enough to know not to completely discharge a lithium ion battery, which is why it turns your phone off before it is totally discharged. So ?
Guest Posted July 4, 2010 Report Posted July 4, 2010 So ? So when we say to let it completely discharge, it means the monitor says 0% and the phone turns off. Doesn't mean it's completely discharged, just means it's the max you can discharge it, and then charge it back and such to calibrate it.
Guest P00rSpy Posted July 4, 2010 Report Posted July 4, 2010 (edited) So when we say to let it completely discharge, it means the monitor says 0% and the phone turns off. Doesn't mean it's completely discharged, just means it's the max you can discharge it, and then charge it back and such to calibrate it. You can deep discharge the battery as much as you want, what I am saying is that you are loosing a charge cycle (or 3/4 of a full cycle whatever) for no reason that can't be fixed by regular charges over a week period... Edited July 4, 2010 by P00rSpy
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