Hi Lisa Marie,
Another option is the DPS 9000 as a backup.
It screws onto the tripod mount and battery itself has a tripod mount.
Go here to read more about it
Two BIG advantages with this battery:
1. Lithium based so will work well in low temps.
2. It will work with almost any
dig cam so it can be portable when/if ?
you upgrade to a different dig cam.
Go here to see compatibility chart: