Is my battery drain normal?

[jorgmartnez]

Here is my situation. I bought a touch pro 2 used. The guy I bought it from has the following software on it. Manilla Version 2.1.19202217.5 and mightyROM WWE 12/19/09 on it with wm 6.5. I made 4 calls lasting a total 45 min. woth of talk time. sent and recieved a total of 9 texts and one picture mail. The battery was at 100 % starting at 11:00 am and is now at 60%. I have had all programs closed, bluetooth off as well as wifi. I was wondering if this is normal. I have been debating is I should try to just set it back to the stock rom but I am a bit worried about bricking my phone since I am not to sure about the procedure.