The system profiler, under Power, says "There was an error while gathering this information"
That sounds like the battery--whether new or not--is defective. Profiler should be able to read the electronics in the battery without issue.
I know Apple no longer sells batteries for this model, but also know there are some counterfeits out there as well. If the battery Apple branded? If not, from whom did you buy the battery? If it's one of the big suppliers of Mac gear like Other World Computing, return it. If you bought from an auction site---well that's where most of the counterfiets show up and you shouuld report the seller if they cannot make it right by you. There are also batteries on auction sites sold as "new" but arrive with 20-50 cycles on them. That's not "new."
Rudy Montes wrote:
It will not start up from sleep if there is a "X" on the battery indicator and it is unplugged.
I think you have a completely different root cause than the OP. What you observe is a symptom of a dead internal backup battery. Those are now available for 1.67gHz PowerBooks but only if they are 17-inch versions. The backup battery in my 1Ghz PowerBook is, after eight years, DOA yet the computer still works. If the main battery drains to zero, I get nothing when I hit the power button. However, I've learned to walk away after hitting the button and wait--after 1-4 minutes on A/C it will get enough into the main battery to start with no addition action on my part. However I repalced my main batter ywth a genuine Apple one a few months before Apple stopped selling them.
What can help is to remove the main battery and leave the computer plugged into AC for 24-48 hours. The backup battery is rechargeable, and even an old one can pick up enough charge when it's the only battery being serviced to show a little life.
My board needs to be replaced as it has now started to show no ram in lower slot (common problem with this model)
Common indeed and there are suggestions that there are few if any unaffected boards left on the used/pulled market. What a lot of people have done is to get one of the newer 1G RAM modules and install it in the good slot to keep the computer in service a little longer.