battery level at routers page

Hi there.

I trying to make profile in Tasker which alert me when battery in my router is getting lower.

Router is Huawei E5776s-32

At page source code, I can't find current battery level anywhere, even at subpages.

I gave links to page source codes where I found something about battery, but can't find current status. Probably because of java, which I don't know.

Please give me some advises or solutions.

Main page
Screenshot

dropbox. com/s/so8aso10yjzty81/Screenshot_2015-08-08-17-10-48.png?dl=0

Main page Source code

dropbox .com/s/lx1x2zxfb2qyv3g/viewsource.txt?dl=0

Subpage - main.js

dropbox. com/s/myq09mxg892nri1/main.js.txt?dl=0