Using X31 battery in X21 ?

[GpsPasSion]

Anyone know if an X31 battery can be used on an X21 ? They look pretty similar. Reason I'm asking is that I've got 6 extra batteries for my X31 and am thinking of getting an X21 as a backup and/or for the wife

[bhtooefr]

Nope.

X2 batteries are X2 batteries, X3 batteries are X3 batteries.

If you're looking for a cheap X3, a low-end X30 will work. It's also Pentium III-based, like the X2s, but will work with all of your X31's accessories.

[GpsPasSion]

Thanks for clarifying, they did look pretty close on the pictures, close but no cigar as they say