What is the application draining the battery? Did you try a system cache clear through the recovery menu?
Also the model number you posted has too many digits in it.
I'm most definitely NOT a VZW employee. If a post answered your question, please mark it as the answer.
We want to be sure your phone is working the way it should nes4381. Ann154 askes some great questions. Let's continue working towards a resolution. Were there any changes to your devices around the time the issues began such as new apps or updates? About how long does the battery last if it is fully charged?
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If my response answered your question please click the 'Correct Answer' button under my response. This ensures others can benefit from our conversation. Thanks in advance for your help with this!