Here - Not sure where abouts in there it is, but it'll be there, or try the search button, it'll throw up a few different links at least.
If you have XPOSED AP installed - there is a battery ap that works with XPOSED that you can install - I don't know where it is - but I know if you did a search for XPOSED Battery themer you will find one like this: http://forum.xda-developers.com/show....php?t=2482620
If you keep searching - you will find more. I have several different ways that I theme my battery - and I found them all using GOOGLE -
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