Any solutions on power consumption?

I want to understand does cocos2d-html5 has any solution on low power consumption. I want to porting it to a pad as 24*7 application, which need stop web page logic(some timer in scene and spirit refresh?), when the screen is turned off, does someone has experiences on it?

It looks like browsers behavior but no game engine behavior. AFAIK, browsers such as safari will do it automatically.
You also can slow down your fps for low power consumption if needed.

耗能真是厉害,两个多小时就把我的mac air电源用光。