battery drops 80% in one day! i7500

well for a while I was getting much more than 36 hrs per charge.
Then today it dropped 10% in each hour WTF!

WHY , well I havent installed anything new , or changed my usage.
What I did do though is put the phone inside a clear gel case......
turns out it was slightly touching the buttons
(I worked this out becuase the home button wouldnt work on several ocassions until I lifted an edge of the gel case .....)

so a word of warning , if you have poor battery life , check the case !!!
May even be worth trying it without for 24 hrs.

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