Date: Thu, 21 Feb 2002 08:13:45 +0000 From: T i m <[EMAIL PROTECTED]> Subject: Re: [LIB] Re: Lib batteries
Hi Konrad, [EMAIL PROTECTED] wrote: > Date: Wed, 20 Feb 2002 07:28:50 -0600 > From: [EMAIL PROTECTED] > Subject: Re: Lib batteries > <snip> > Kind of odd, since > I thought that one should not put voltage sources in series. [T] I think that should be 'parallel'? [T] If you charge cells in series (the normal) the individual cells will all receive the same charging current. However, the capacities of the cells are all going to be slightly different (even on 'matched cells') and so 'lower' capacity cells will be 'overcharged' whilst higher capacity cells would take longer to attain full charge. Now as long as the 'overcharge' is within the design parameters then most cells can tolerate this with little damage. [T]If you charge in 'parallel' each cell pair are now forced to act as one and due to the capacity / terminal voltage differences aren't likely to give as much total capacity? [T] 'Some' charging systems effectively split the parallel pairs during charging and therefore are less of a problem? My 3 hapenth anyway ;-)) T i m ************************************************************** http://libretto.basiclink.com - Libretto mailing list http://libretto.basiclink.com/archive - Archives http://www.picante.com/~gtaylor/portable/faq.html - FAQ -------TO UNSUBSCRIBE------- Reply to any of the list messages. The reply mail should be addressed to: [EMAIL PROTECTED] - Then replace any text on the message's subject line: cmd:unsubscribe --------TO UNSUBSCRIBE DIGEST------ Do above but with this on subject line: cmd:unsubscribe digest **************************************************************
