Chris, This is because the gauge is based off of pure voltage. When the AC Adapter is plugged in, there is enough voltage going in that the gauge is reporting 100%.
Kevin ----- Original Message ----- From: "Chris Hallsworth" <[EMAIL PROTECTED]> To: "Kevin Chao" <[EMAIL PROTECTED]>; "Joseph Lee" <[EMAIL PROTECTED]>; "'Catherine Turner'" <[EMAIL PROTECTED]> Cc: <[email protected]> Sent: Tuesday, November 13, 2007 3:24 PM Subject: Re: [Braillenote] PK question > Hi, so why does the PK always report 100% when it's plugged in, even > though the battery itself is not at 100%? Is this because of how the > battery works? Curious minds wants to know <smiles>. Thanks in advance. > ----- Original Message ----- > From: "Kevin Chao" <[EMAIL PROTECTED]> > To: "Joseph Lee" <[EMAIL PROTECTED]>; "'Catherine Turner'" > <[EMAIL PROTECTED]> > Cc: <[email protected]> > Sent: Tuesday, November 13, 2007 11:17 PM > Subject: Re: [Braillenote] PK question > > >>I won't go into the details of the PK's battery and how it works. >> >> If you received your unit at 95% then there won't be any harm in using it >> right out of the box. The PK will last longer than the mPower and you >> should get really close to 20 hours of usage before the battery reports >> critical or the unit shuts itself off. The gague will jump +-10% meaning >> that the battery may really be at 90% but it may report 80% or 100%. I >> personally would let the unit run down to 20-40% before charging it up, >> but there won't be any harm in charging it sooner. A full charge from 0% >> to 100% takes just a little over an hour. Something to keep in mind when >> charging the PK is that it will always report 100% when plugged in, what >> I do is just leave it pluggede it in for at least 1.5 hours before taking >> it off the charge. In order to see what the gague really is at, it is >> required to unplug the AC Adapter. >> >> Kevin >> ----- Original Message ----- >> From: "Joseph Lee" <[EMAIL PROTECTED]> >> To: "'Catherine Turner'" <[EMAIL PROTECTED]> >> Cc: <[email protected]> >> Sent: Tuesday, November 13, 2007 3:07 PM >> Subject: RE: [Braillenote] PK question >> >> >>> Hi Catherine, >>> The PK's battery, unlike other products on the BN family, uses different >>> charging/discharging techniques. Whereas mPower's Nickel Metal Hydride >>> (NiH) >>> batteries use gauge monitor to display power status, PK uses battery's >>> current voltage to measure battery power. I'd say, unless other PK users >>> say >>> it otherwise, that it is recommended that you charge your unit for about >>> two >>> hours before using it. And, remeber, while using your PK, if "Power and >>> Battery status" gives you wird reading such as 60% after using it for >>> about >>> an hour, don't worry, as the battery volatabe may change during >>> discharge >>> and the battery is not really at 60%, but rather around 95%. >>> Cheers, >>> Joseph P.S. Even though I'm learning Physics at school, I cannot really >>> explain why PK's Lithium Ion battery relies on voltage alone (well, >>> someone >>> will explain). >>> >>> -----Original Message----- >>> From: [EMAIL PROTECTED] >>> [mailto:[EMAIL PROTECTED] On Behalf Of Catherine >>> Turner >>> Sent: Tuesday, November 13, 2007 6:35 AM >>> To: BrailleNote >>> Subject: [Braillenote] PK question >>> >>> Hi, >>> >>> I received my PK today and am going through the tutorial at the moment. >>> I've got a question about the battery. I had assumed that as it was new >>> I >>> would need to charge the unit for quite some time before being able to >>> use >>> it. But I've switched it on and it says the battery is at 94%. In the >>> manual and so far in the tutorial I haven't found mention of charging >>> the >>> unit for the first time - so I just wanted to check - is it ok to just >>> use >>> it straight away like this without charging it? And is there any >>> recommendation in terms of running the battery down each time before >>> charging it? >>> >>> Thanks, >>> Catherine >>> ** >>> Read, ruminate and rant with me - visit my blog: >>> http://catherineturner.wordpress.com >>> Life, the universe and technology titbits >>> >>> >>> ___ >>> Replies to this message will go directly to the sender. >>> If your reply would be useful to the list, please send a copy to the >>> list as >>> well. >>> >>> To leave the BrailleNote list, send a blank message to >>> [EMAIL PROTECTED] >>> To view the list archives or change your preferences, visit >>> http://list.humanware.com/mailman/listinfo/braillenote >>> >>> No virus found in this incoming message. >>> Checked by AVG Free Edition. >>> Version: 7.5.503 / Virus Database: 269.15.30/1126 - Release Date: >>> 11/12/2007 >>> 12:56 PM >>> >>> >>> No virus found in this outgoing message. >>> Checked by AVG Free Edition. >>> Version: 7.5.503 / Virus Database: 269.15.31/1129 - Release Date: >>> 11/13/2007 >>> 9:22 PM >>> >>> >>> >>> ___ >>> Replies to this message will go directly to the sender. >>> If your reply would be useful to the list, please send a >>> copy to the list as well. >>> >>> To leave the BrailleNote list, send a blank message to >>> [EMAIL PROTECTED] >>> To view the list archives or change your preferences, visit >>> http://list.humanware.com/mailman/listinfo/braillenote >>> >>> >> >> >> >> >> ___ >> Replies to this message will go directly to the sender. >> If your reply would be useful to the list, please send a >> copy to the list as well. >> >> To leave the BrailleNote list, send a blank message to >> [EMAIL PROTECTED] >> To view the list archives or change your preferences, visit >> http://list.humanware.com/mailman/listinfo/braillenote >> > Chris Hallsworth > BrailleNote mPower User > Website: www.chrishallsworth.co.nr > ___ Replies to this message will go directly to the sender. If your reply would be useful to the list, please send a copy to the list as well. To leave the BrailleNote list, send a blank message to [EMAIL PROTECTED] To view the list archives or change your preferences, visit http://list.humanware.com/mailman/listinfo/braillenote
