> From: Robert Gray <[EMAIL PROTECTED]> > Subject: Re: [PCI] freeze on startup and restart > > At 09:10:57 +0000 on 5/20/04, [EMAIL PROTECTED] wrote: > >> ...yet another little bottle lithium battery... >> have a few now. They all seem good from voltage tests. > > A battery's voltage is determined by the difference in physical > chemistry of its two principle components. That difference may exist > even in exhausted batteries; however, when even the slightest power > (flow of electrons) is drawn, the voltage may vanish. The proper > determination requires the application of a load, at least as large > as that in the circuit where the battery will be used, while the test > voltage is read. Trying to accomplish that by taking the reading in > place may require the use of a recording oscilloscope due to the > transient nature of the circuit.
Thanks for this Robert. As I indicated previously I do a sort of load test for batteries. But you remind me to be more exact, to use more finesse. My test is very rough and home made but it does find lots of crook batteries that have (superficially) right voltage (good enough for torches and radios and stuff at least) David Elmo -- PCI-PowerMacs is sponsored by <http://lowendmac.com/> and... Small Dog Electronics http://www.smalldog.com | Refurbished Drives | -- Sonnet & PowerLogix Upgrades - start at $169 | & CDRWs on Sale! | Support Low End Mac <http://lowendmac.com/lists/support.html> PCI-PowerMacs list info: <http://lowendmac.com/lists/pci-powermacs.shtml> --> AOL users, remove "mailto:"; Send list messages to: <mailto:[EMAIL PROTECTED]> To unsubscribe, email: <mailto:[EMAIL PROTECTED]> For digest mode, email: <mailto:[EMAIL PROTECTED]> Subscription questions: <mailto:[EMAIL PROTECTED]> Archive:<http://www.mail-archive.com/pci-powermacs%40mail.maclaunch.com/> Using a Mac? Free email & more at Applelinks! http://www.applelinks.com
