Originally Posted by
Ghoomato the phone is old so the battery life is depleted . But yes you can try to uninstall the unuseful apps ans can star the battery saving mode.
Pretty sure OP is talking about a laptop.
1. Well, its hard to tell if its Windows 10 entirely. It's possible, as going from supported 7 to unsupported 8.0 knocked 30 minutes off my old ThinkPad's battery life. Then again, the battery degraded pretty fast after that.
I'd actually try this out, its very informative:
http://www.thewindowsclub.com/get-more-battery-life-out-of-your-laptop-in-windows-7
For example my current notebook is at about maybe 90% original capacity. My old one, the main battery's at around a quarter. The secondary is doing better at probably 60-70 ish but eh, its been retired.