Q: PowerBook G3 Wallstreet/PDQ PRAM battery

I cannot tell for sure, that picture seems to indicate a "new" part.

To my knowledge. PRAM batteries are extremely rare to find. Your best bet is to rely upon...

Return Policy - FastMac - August 2016

http://store.fastmac.com/information.php?id=6

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$25 - $40 seems to be the going rate for an aftermarket PRAM battery for that antiquated mac (I have one too)

the original PRAM batteries from Apple appear to go for about $50 if you can find them.

Any plugin battery you find is likely going to be sitting around for ages in a warehouse so take what you can find provided the warranty appears to be something useful as the more time those components sat around unused the quicker they may brake down.

Cal FastMac and ask them if it is new. The supply of those batteries from trusted vendors seems to have dried up. An original Apple battery would probably be made about 2002-2003 so you don't wan't that.