Are all batteries the same?
 

Do all series Blackberries (8700, 8800 and 8300) use the same batteris? I have all three and the 8700 and the 8300 have the blue batery, while the 8800 has a green one. I've taken closer look at them and all numbers seem to match.. but i thought i ask here first.
My most recent purchase ( the 8320) has a bad battery. The charge only lasts for about 10 hrs.. and i use the wifi for only about 2 hrs out of those 10. On the other hand, i have an extended seidio battery for my 8800 and i was wandering if i should use that one in the 8320.
And finally if that is not possible,can i use the battery from the 8700 in the 8300? ( the charge on the 8700 puts me through about 5 days without having to recharge, with what i consider heavy usage.. )

Thank\

8700 and 8300 use the same battery. 8800 uses a different battery