Default file edit to disable low battery warnings?

Hi,

Is there a file i can edit (build prop or something) that will turn off those annoying low battery warnings. I'm sure I saw a page on this a while back but can't find it anywhere now.

I'm aware of xposed framework but that doesn't support ART and is overkill just for this tweak.
I'm also aware of renaming/deleting lowbattery.ogg but this doesn't remove the pop ups.

Ta.