<html> <head> <style> .hmmessage P { margin:0px; padding:0px } body.hmmessage { FONT-SIZE: 10pt; FONT-FAMILY:Tahoma } </style> </head> <body class='hmmessage'> <style>.hmmessage P{margin:0px;padding:0px}body.hmmessage{FONT-SIZE: 10pt;FONT-FAMILY:Tahoma}</style>Here is a photo of my Ipaq with the supplies battery with 2.8 Ah. It´s a little bit bigger than the original one but works longer: about 8 hours tuning time. Gregor > From: mfarrel2@tampabay.rr.com > To: pianotech@ptg.org > Subject: Re: PDA-Based ETDs > Date: Fri, 2 May 2008 09:20:59 -0400 > > 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@pianorebuilders.com> > To: ''Pianotech List'' <pianotech@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@ptg.org [mailto:pianotech-bounces@ptg.org] On > > Behalf > > Of Jon Page > > Sent: Friday, May 02, 2008 7:27 AM > > To: pianotech@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 > > > > <hr />Invite your mail contacts to join your friends list with Windows Live Spaces. It's easy! <a href='http://spaces.live.com/spacesapi.aspx?wx_action=create&wx_url=/friends.aspx&mkt=en-us' target='_new'>Try it!</a></body> </html>