I'm not sure if this has been addressed or not, i didn't see a thread, but i thought i'd just let you guys know what i did to assist the back of my droid. Since mine has come off a half dozen times even with me being very careful not to knock it off... anyhow what i did was get a rubber band... the gumband i had was about as wide as a pencil. i cut like a 1/4" piece and pulled my battery out laid it under the battery (between the battery and phone) then put the cover back on. Now i also tried it the other way, between the cover and the battery, but you could feel a bulge that way. My battery cover has yet to come off since... TIPS: use your head, you know how big of a piece feels the best. there should NOT be a huge bulge under your case and you shouldn't have to use all your force to get the battery cover back on.. just a tiny piece will fix this issue.