How many hours will your PDA run with the lowest screen brightness setting? What tuning software are you running? My last tuning, I started with a 100% charge, I spent 2.5 hours pitch raising and tuning (and playing with my PDA - only the second tuning with it) and I used up 45% of the charge. My screen brightness is set at the lowest setting that illuminates the screen (one further down is black), I have all my wireless and whatever else stuff turned off (or at least I think I do - I've checked everything I can find). I have the volume off. What else can I do to conserve power? If this one tuning is indicative of my run time, I will be down to 10% charge after five hours. Does yours last longer? If so, I wonder if your PDA is simply more energy efficient than mine - or maybe a bigger battery. I am using an HP ipaq 111. I has a 3.7V 1.2 Ah battery. I am running Verituner software. And I'll add an external battery pack long before I start tuning unisons after all center strings. I'm getting old and crabby and I ain't gonna change! ;-) A lot of this depends on how one tunes and uses the PDA. If you are a 45-minute tuner and you don't tune unisons as you go - you might only have the PDA on for 20 minutes per tuning. At that rate even my PDA would do 8 tunings and still have more than half the battery! Nothing wrong with that approach if one is happy/comfy with it - I simply need to have my PDA on for two hours for a pitch raise and a tuning to keep me happy - and I think an external battery pack will get me there. Terry Farrell ----- Original Message ----- From: "Dean May" <deanmay at pianorebuilders.com> To: "'Pianotech List'" <pianotech at ptg.org> Sent: Friday, May 02, 2008 7:41 AM Subject: RE: PDA-Based ETDs >I confess I don't understand why people are having battery problems. I can > get 6-8 tunings out of a charge. If you turn it down to the dimmest > setting > the battery lasts forever. You can even turn the display off and still see > it enough to tune if you shine a desk lamp on it. Then it will last > forever. > > > If you find the charge getting low at the end of the day you can also > reduce > the time you need the Ipaq on (if it's not a pitch raise). Just don't tune > unisons as you go. Or just tune the temperament with the Ipaq (or whatever > octaves you have trouble with by ear) and the rest by ear. > > Dean > > Dean May cell 812.239.3359 > > PianoRebuilders.com 812.235.5272 > > Terre Haute IN 47802 > > > > > -----Original Message----- > From: pianotech-bounces at ptg.org [mailto:pianotech-bounces at ptg.org] On > Behalf > Of Jon Page > Sent: Friday, May 02, 2008 7:27 AM > To: pianotech at ptg.org > Subject: PDA-Based ETDs > > Why have a massive battery pack? If something is going to be tethered > to the PDA why not simply use the AC adapter? Bring an extension cord. > -- > > Regards, > > Jon Page >
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