HRZ it's very well possible that this could have an impact on battery life but I'm that unimpressed with the how long it lasts anyway. I get about 8hrs out of a full charge that's with light/moderate use whilst at work. That was before I implemented Jakimans tweak. I'll get back to you if I suffer a negative impact but like I stated I'm already unimpressed so at the worse I'll have to have a charge midday.