You should never replace only part of the battery load because of the reasons Max has given. You either replace them all or none at all. It and the voltages of rechargibles aren't right for every occasion.
Alan Please click on: http://www.home.earthlink.net/~alanandsuzanne/ There, you'll find files of my arrangements and performances played on the Yamaha Tyros keyboard. I often add files so check back regularly! The albums in Technics format formerly on my website are still available upon request. ----- Original Message ----- From: "Max Robinson" <m...@maxsmusicplace.com> To: <blindhandyman@yahoogroups.com> Sent: Sunday, August 15, 2010 7:38 PM Subject: Re: [BlindHandyMan] batteries > Spiro asked. > > explain why never parallel of the same type? > Thanks > > No two cells are exactly identical and if two are connected in parallel > the > stronger one will try to charge the weaker one. Since these cells are not > designed to be charged this is not good even though some articles have > reported some success in charging such cells. If a user were to put a new > cell next to an old cell in a place where the cells are in parallel the > weak > cell would discharge the strong cell and it would run down prematurely. > In > the worst case one of them could explode. One of the laws of design is if > it can be done someone is going to do it. So to keep from getting sued > cells are never connected in parallel. > > > Regards. > > Max. K 4 O D S. > > Email: m...@maxsmusicplace.com > > Transistor site http://www.funwithtransistors.net > Vacuum tube site: http://www.funwithtubes.net > Music site: http://www.maxsmusicplace.com > > To subscribe to the fun with transistors group send an email to. > funwithtransistors-subscr...@yahoogroups.com > > To subscribe to the fun with tubes group send an email to, > funwithtubes-subscr...@yahoogroups.com > > ----- Original Message ----- > From: "Spiro" <sp...@iamspiro.com> > To: <blindhandyman@yahoogroups.com> > Sent: Sunday, August 15, 2010 8:52 PM > Subject: Re: [BlindHandyMan] batteries > > >> explain why never parallel of the same type? >> Thanks >> >> >> >> >> >> On Sun, 15 Aug 2010, Max Robinson wrote: >> >>> Putting batteries even of the same type in parallel is a bad idea and is >>> never done by reputable manufacturers. Let's say the machine used 4 AA >>> cells all in series. If you were to use 3 alkaline cells and one ni cad >>> the >>> device would work because of the reserve the designers built into it. >>> When >>> the ni cad went flat which it almost certainly would do first the device >>> would likely keep working on the 3 alkaline cells. That is where the ni >>> cad >>> would be damaged and could even explode. >>> >>> Regards. >>> >>> Max. K 4 O D S. >>> >>> Email: m...@maxsmusicplace.com >>> >>> Transistor site http://www.funwithtransistors.net >>> Vacuum tube site: http://www.funwithtubes.net >>> Music site: http://www.maxsmusicplace.com >>> >>> To subscribe to the fun with transistors group send an email to. >>> funwithtransistors-subscr...@yahoogroups.com >>> >>> To subscribe to the fun with tubes group send an email to, >>> funwithtubes-subscr...@yahoogroups.com >>> >>> ----- Original Message ----- >>> From: "Spiro" <sp...@iamspiro.com> >>> To: <blindhandyman@yahoogroups.com> >>> Sent: Sunday, August 15, 2010 5:18 AM >>> Subject: Re: [BlindHandyMan] batteries >>> >>> >>>> that would be when in parallel right? >>>> Thanks >>>> >>>> >>>> >>>> >>>> >>>> On Sat, 14 Aug 2010, Max Robinson wrote: >>>> >>>>> If you mix batteries and the rechargeable ones run down first there >>>>> might >>>>> be >>>>> enough power in the others to keep the device going just enough to >>>>> cause >>>>> it >>>>> to continue to be used. If that happened the rechargeable ones could >>>>> be >>>>> damaged by reverse polarity. >>>>> >>>>> Regards. >>>>> >>>>> Max. K 4 O D S. >>>>> >>>>> Email: m...@maxsmusicplace.com >>>>> >>>>> Transistor site http://www.funwithtransistors.net >>>>> Vacuum tube site: http://www.funwithtubes.net >>>>> Music site: http://www.maxsmusicplace.com >>>>> >>>>> To subscribe to the fun with transistors group send an email to. >>>>> funwithtransistors-subscr...@yahoogroups.com >>>>> >>>>> To subscribe to the fun with tubes group send an email to, >>>>> funwithtubes-subscr...@yahoogroups.com >>>>> >>>>> ----- Original Message ----- >>>>> From: "Spiro" <sp...@iamspiro.com> >>>>> To: <blindhandyman@yahoogroups.com> >>>>> Sent: Saturday, August 14, 2010 5:17 PM >>>>> Subject: [BlindHandyMan] batteries >>>>> >>>>> >>>>>> okay, Tom or someone explain this to me: >>>>>> >>>>>> a toy my kid just got says this: >>>>>> >>>>>> do not mix *alkaline, *standard, or *rechargable batteries >>>>>> do not use *rechargable batteries. >>>>>> >>>>>> It's a motor, that tosses little sponge ring 30 feet. >>>>>> It's like a semi-auto with the magazine above instead of below. >>>>>> So why ot mix, to start, and what reason not to use rechargables for >>>>>> the >>>>>> 2 >>>>>> AA needed? >>>>>> >>>>>> I've mixed batteries before. >>>>>> What should I have noticed? >>>>>> I have a dozen rechargable AA and have placed a tiny piece of scotch >>>>>> tape >>>>>> on each one so I don't toss them out. >>>>>> Even though it doesn't save actual energy it saves the containers >>>>>> constant >>>>>> disposal. >>>>>> >>>>>> >>>>>> >>>>>> >>>>>> >>>>>> >>>>>> ------------------------------------ >>>>>> >>>>>> Send any questions regarding list management to: >>>>>> blindhandyman-ow...@yahoogroups.com >>>>>> To listen to the show archives go to link >>>>>> http://www.acbradio.org/pweb/index.php?module=pagemaster&PAGE_user_op=view_page&PAGE_id=33&MMN_position=47:29 >>>>>> Or >>>>>> ftp://ftp.acbradio.org/acbradio-archives/handyman/ >>>>>> >>>>>> The Pod Cast address for the Blind Handy Man Show is. >>>>>> http://www.acbradio.org/news/xml/podcast.php?pgm=saturday >>>>>> >>>>>> Visit the archives page at the following address >>>>>> http://www.mail-archive.com/blindhandyman@yahoogroups.com/ >>>>>> >>>>>> For a complete list of email commands pertaining to the Blind Handy >>>>>> Man >>>>>> list just send a blank message to: >>>>>> blindhandyman-h...@yahoogroups.comyahoo! Groups Links >>>>>> >>>>>> >>>>>> >>>>>> >>>>> >>>>> >>>> >>>> >>>> ------------------------------------ >>>> >>>> Send any questions regarding list management to: >>>> blindhandyman-ow...@yahoogroups.com >>>> To listen to the show archives go to link >>>> http://www.acbradio.org/pweb/index.php?module=pagemaster&PAGE_user_op=view_page&PAGE_id=33&MMN_position=47:29 >>>> Or >>>> ftp://ftp.acbradio.org/acbradio-archives/handyman/ >>>> >>>> The Pod Cast address for the Blind Handy Man Show is. >>>> http://www.acbradio.org/news/xml/podcast.php?pgm=saturday >>>> >>>> Visit the archives page at the following address >>>> http://www.mail-archive.com/blindhandyman@yahoogroups.com/ >>>> >>>> For a complete list of email commands pertaining to the Blind Handy Man >>>> list just send a blank message to: >>>> blindhandyman-h...@yahoogroups.comyahoo! Groups Links >>>> >>>> >>>> >>>> >>> >>> >> >> >> ------------------------------------ >> >> Send any questions regarding list management to: >> blindhandyman-ow...@yahoogroups.com >> To listen to the show archives go to link >> http://www.acbradio.org/pweb/index.php?module=pagemaster&PAGE_user_op=view_page&PAGE_id=33&MMN_position=47:29 >> Or >> ftp://ftp.acbradio.org/acbradio-archives/handyman/ >> >> The Pod Cast address for the Blind Handy Man Show is. >> http://www.acbradio.org/news/xml/podcast.php?pgm=saturday >> >> Visit the archives page at the following address >> http://www.mail-archive.com/blindhandyman@yahoogroups.com/ >> >> For a complete list of email commands pertaining to the Blind Handy Man >> list just send a blank message to: >> blindhandyman-h...@yahoogroups.comyahoo! Groups Links >> >> >> >> > > > > ------------------------------------ > > Send any questions regarding list management to: > blindhandyman-ow...@yahoogroups.com > To listen to the show archives go to link > http://www.acbradio.org/pweb/index.php?module=pagemaster&PAGE_user_op=view_page&PAGE_id=33&MMN_position=47:29 > Or > ftp://ftp.acbradio.org/acbradio-archives/handyman/ > > The Pod Cast address for the Blind Handy Man Show is. > http://www.acbradio.org/news/xml/podcast.php?pgm=saturday > > Visit the archives page at the following address > http://www.mail-archive.com/blindhandyman@yahoogroups.com/ > > For a complete list of email commands pertaining to the Blind Handy Man > list just send a blank message to: > blindhandyman-h...@yahoogroups.comyahoo! Groups Links > > > >
