Simply Miku battery, made for iPhone.
I've only uploaded full charged png.
For some reasons, my lockscreen.html file doesn't allow me to use battery theme at the same time. *snirfl*
Original file: goo.gl/7Lh76h
Edit: adding dropbox 7zip link
to the full set. It's a first resize try, it'll be probably still too large. And it doesn't work if you already have a custom lockscreen.html