Monday, December 01, 2008
T-Mobile G1 Battery Conditioning and Calibrating
The T-Mobile G1 is a great device, a great device with a slightly wonky screen. It maybe new to the market but it is making quite a stir. Often due to its Android OS, but unfortunately its terrible battery life gets almost as much attention. Following a couple of simple steps I'm now obtaining reasonable life from my G1 with it now lasting a day between charges.
There are two issues here, battery meter calibration and battery conditioning - the G1's battery meter seems to come particularaly poorly calibrated, mine was reading 1% remaining when I still had around 15%-20% remaining (use Power Meter from App Store to see the voltages). Maybe it is down to the flexability of the Android OS, maybe not, either way you need to calibrate the battery meter yourself.
To calibrate the battery meter let the phone run down to 0% battery and turn itself off, for the last percent or two don't apply too much load to the device, just let it drain out. Even while using it my G1 hung on to its last 1% of battery for almost 2 hours. Now the battery meter knows the real 0% point. Then get it charging, I'd recommend charging it with it turned off for 5 or 6 hours. I've done this twice now, the second was a couple of days after the first time made the most difference to battery life. This should have now calibrated the meter and conditioned the battery.
I personally wouldn't do this too often, I'm under the impression the Lithium Ion batteries don't like being discharged to this level or at least left in that state for too long - although that may be a myth.
Posted by Rich Hyndman at 6:43 AM
Labels: t-mobile g1 battery condition calibrate optimize optimise conditioning calibrating htc dream