ok... two things.. I checked my applications.. I only have 5 max maybe 6 running.. I talked with verizon store.. they said.. battery only lasts for 5.5 hrs.. so mine lasting for 12 hrs is great.. I do call a bit.. but do text alot.. and have learned to close out applications I am not using when possible.. but my battery will be dead if I didn't charge it every night. so what are you doing to allow it to stay for charged for 4 days and only need recharged every day and a half???