This is definitely a worthwhile accessory for the Moto Q. I liked it so much, I bought two, and I now regularly swap between the two during the day if one runs low. It also works well with the Motorola Q Desktop Charging Station, which has a recess in the back support that allows for clearance with the extended battery cover installed. The dock also allows for charging a spare extended battery, so these two Motorola products are (not surpisingly) very compatible. Should have bought these extended batteries when I first purchased the phone!