I used cyclemeter and had good battery life after using it for an hour and a half. Even got to use my ipod on the drive home. And as far as it resetting, I didn't have that problem. I know the mounts run about $25 on some bike websites and the LBS I checked and I saw some on eBay shipping from overseas for less than $10. I personally don't have one and i just use an armband but I do plan on getting one soon