Looking for a Motorola Atrix 4G MB860 Extended battery

[earthspark]

as we know the battery of Motorola Atrix 4G can't last long,there are oftem times when you want to do someting urgent but your battery is out.
now there is a third party extended battery for Motorola Atrix 4G
the capacity is 3500mAh,about 22 usd,made in China,dancedroid
i see the Seidio Innocell for Atrix is over 60USD from Amazon.that's why i choose the cheaper one

 

[earthspark]

by the way,the LG Optimus 2X P990 Extended battery is also available now from lingobox,about 20.98$

 

[yurdle]

I believe the droid X uses the same battery too.. So it's exteneded battery should work too.. just don't know about a battery door/cover