Won't work without battery?

If my battery drains during sleep, it won't power up until the battery regains sufficient charge. Even if I remove the battery and try to run on AC alone, it still won't power up.
Once it's working, I can remove the battery while it's running and use AC alone.
Is this typical of a Mac?

jjooee wrote:
If my battery drains during sleep, it won't power up until the battery regains sufficient charge.
I've definitely seen machines where if the battery is depleted (or near depleted) they wouldn't power on until a couple minutes worth of charge was sent through the battery cells. I've seen Windows laptops (Dell, Toshiba, Acer) do the same thing.
However, if you remove the battery and the machine is capable of being run without a battery installed (which is 99% of most modern portables), then there should be no problems starting up. Unless of course the issue with your portable is related to a low level power management function (namely related to the SMC). You can try resetting that (http://support.apple.com/kb/ht3964), otherwise I suspect there might be a hardware issue involved.

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    8  * * *
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