Hi, yes, that is what I thought re: parallel. But I've had one of those battery chargers, claiming to be different for alkaline cells. It works, and my greatest fear was heat or worse. I could get about 12 hours from 2 AA batts in a Walkman (maybe due to high volume requirements on city r\trains) After the batts had run completely down, I could charge and get 2 days, recharge and get 1 day and then toss. I was recooping 25%. that's a day and a half after each 6 of use. what's the trick?
On Sun, 15 Aug 2010, Max Robinson wrote: > 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: [email protected] > > 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. > [email protected] > > To subscribe to the fun with tubes group send an email to, > [email protected] > > ----- Original Message ----- > From: "Spiro" <[email protected]> > To: <[email protected]> > 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: [email protected] >>> >>> 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. >>> [email protected] >>> >>> To subscribe to the fun with tubes group send an email to, >>> [email protected] >>> >>> ----- Original Message ----- >>> From: "Spiro" <[email protected]> >>> To: <[email protected]> >>> 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: [email protected] >>>>> >>>>> 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. >>>>> [email protected] >>>>> >>>>> To subscribe to the fun with tubes group send an email to, >>>>> [email protected] >>>>> >>>>> ----- Original Message ----- >>>>> From: "Spiro" <[email protected]> >>>>> To: <[email protected]> >>>>> 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: >>>>>> [email protected] >>>>>> 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/[email protected]/ >>>>>> >>>>>> For a complete list of email commands pertaining to the Blind Handy >>>>>> Man >>>>>> list just send a blank message to: >>>>>> [email protected]! Groups Links >>>>>> >>>>>> >>>>>> >>>>>> >>>>> >>>>> >>>> >>>> >>>> ------------------------------------ >>>> >>>> Send any questions regarding list management to: >>>> [email protected] >>>> 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/[email protected]/ >>>> >>>> For a complete list of email commands pertaining to the Blind Handy Man >>>> list just send a blank message to: >>>> [email protected]! Groups Links >>>> >>>> >>>> >>>> >>> >>> >> >> >> ------------------------------------ >> >> Send any questions regarding list management to: >> [email protected] >> 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/[email protected]/ >> >> For a complete list of email commands pertaining to the Blind Handy Man >> list just send a blank message to: >> [email protected]! Groups Links >> >> >> >> > >
