In a message dated 7/29/02 5:31:09 AM, [EMAIL PROTECTED] writes:
<< The PRAM battery in the Quadras I know (using 3.6V lithium battery) is NOT beign recharged when the computer is plugged in: those lithium units are not rechargeable. >> Correct. The 3.6 volt (nominal) lithium 1/2-AA batteries, as used in most desktop Macs from the Quadra to the present day, are not rechargeable. However, the "VL series" of lithium batteries, as used in the PB190, PB5xx and PB5300 (and perhaps others) are indeed rechargeable. There are two 3.0 volt batteries in series, with both 3.0 and 6.0 volts being utilized by various PB subsystems. >> Rather, the power supply continually puts out a minute amount of voltage (5V, 1mA) whenever it is plugged in, which frees the battery from delivering any power. When the computer is unplugged, the battery takes over. >> Correct. The 5-volt signal is called "trickle". And, unlike the implication in the name, it is NOT used to "trickle charge" the 3.6 volt lithium battery, which is indeed NOT rechargeable. -- Quadlist is sponsored by <http://lowendmac.com/> and... Small Dog Electronics http://www.smalldog.com | Enter To Win A | -- Canon PowerShot Digital Cameras start at $299 | Free iBook! | Support Low End Mac <http://lowendmac.com/lists/support.html> Quadlist info: <http://lowendmac.com/lists/quadlist.shtml> The FAQ: <http://macfaq.org/> 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/quadlist%40mail.maclaunch.com/> Using a Mac? Free email & more at Applelinks! http://www.applelinks.com
