Apple Mac Book Battery not Charging

My battery has stopped taking a charge. This is the second battery I have had in this Black Mac Book. The first time I was told there was a firmware update that I needed to download that would fix it and I have since installed it. Is this battery fried or is there a board reset or hardware reboot that I need to do so that it will take a charge. FYI (Days before it went out the battery was still at 100% health)
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strungConnect With a Mentor Commented:
Also try downloading and installing this Apple Battery Update:

Also read the information on the same link about an Apple battery replacement program.
did you try to boot into 'open firmware' to reset all to try?
1) Boot into the Open Firmware. (Command + Option + O + F)

2) Type "setenv security-mode none" and press return.

3) Enter in the password at the password request prompt and press return.

4) Then type "reset-all" to restart the computer.

if that doesn't help, the battery probably needs to be replaced.

hope it helps.

Try resetting the PRAM by cold booting while holding down the command-option-p-r key combination until you hear the start up chime for a third time.
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