Re: Dead G5 Help

In article <C5280D0E.133D0%nicknaym@[remove_this].gmail.com>,
Nick Naym <nicknaym@[remove_this].gmail.com> wrote:
In article 1869551a-ebe4-4765-9ca1-a63e45167d12@xxxxxxxxxxxxxxxxxxxxxxxxxxx,
mark at splicethisaudio@xxxxxxxxxxx wrote on 10/24/08 11:06 PM:

Steven, Machine: Power Mac G5 A1047. Pulled battery, checked over 3.5
V on my meter. Power on, power button flashes 3 times, pause, repeat
etc. With clear plastic cover off, fans blow full, single red led
toward front. Clear cover on, fans go down, red led off.

Volt meters are pretty useless for determining a battery's health.

Oh, puhleeeze! And the world is inscrutable, we're all gunna die, so why
bother?

These batteries are nominal 3.6v lithium. A NEW one should measure 3.7v.
3.5v means it's old. Replace it. And when you're buying the new one
INSIST that they check the voltage before you leave the store and it's
3.7v. Once upon a time I bought a 'new' one of these from Radio Shack,
installed it and the problem persisted. Measured the voltage of the
supposedly new battery: 3.47v. It must have been on the shelf for a
thousand years. Returned the battery for a fresh one at 3.7v; problem
gone.

Then again, John's suggestion about the video cables is a good one. Try
both solutions.

--Fred
.

Relevant Pages

  • Re: SmartMeter: power for gas side
    ... Where does the gas meter get power ... one battery maker's story on the subject. ... Average current works out to 140 uA, and with a service life of 11.5 ...
    (sci.electronics.design)
  • Re: First Alert FA-210 panel keeps beeping
    ... Sometimes the panel ... it says it is due to low system power ... and the battery is used only when A/C power is disabled. ... reading is because the meter doesn't put any load on the battery so ...
    (alt.security.alarms)
  • Re: No power up
    ... Simply remove and measure battery voltage. ... then the meter will provide useful and definitive facts - no doubt. ... what is the voltage on that purple wire when power ...
    (microsoft.public.windowsxp.hardware)
  • Re: Dead G5 Help
    ... Clear cover on, fans go down, red led off. ... Although there is not much drain on the battery normally, ... possibility that it does have really high internal resistance. ... meter probably has a resistance of about 10 megohms. ...
    (comp.sys.mac.system)
  • Re: Dead G5 Help
    ... Power on, power button flashes 3 times, pause, repeat ... Clear cover on, fans go down, red led off. ... And when you're buying the new one INSIST that they check the voltage before you leave the store and it's 3.7v. ... If your meter reads 1.4% high, ...
    (comp.sys.mac.system)