My LG G4's battery is draining even faster than it was when I got it (which is saying something because the G4 guzzles power when its new). I also have noticed that the battery's capacity has decreased or the battery sensor isn't calibrated. I think it's probably the battery because the numbers that I'm getting from my phone's battery monitor don't agree with the percentage. The phone says that the battery was at 56% percent (44% used) and that the screen accounted for 55% of that usage. This would mean that the screen used 726 mah of the 1320 mah used in total. According to the battery monitor, though, the screen used 261 mah. Assuming that the screen used 261 mah, the battery's capacity would actually be 1078 mah. I did this calculation with 2 other apps power usage and the calculations yielded very similar results (1090 and 1061 mah). I'm pretty sure that this means that it's time for a new battery, but since I have very little experience with lithium batteries, I wanted to see what people think. Thanks for any advice and help.

 

I agree you probably need a new battery but that judgement should be made based on its current capacity when fully charged versus its specification. If it’s over 80%, that’s not bad. Under 70% is going to be very noticeable.

Those power montitor apps may be reporting instantaneous consumption in mA, not totalized mAh. I doubt they could be precise on a total unless they were running the entire time.

 

So my battery would be running at roughly 36% of its original capacity when fully charged if I did my math correctly. That would explain why my phone's battery has been so horrible lately.

 

Did you change your battery?

 

Yup. I got a total of 3 300 mah 3rd party batteries and an extended battery. The new batteries are working much better. I learned that my charging habits were probably killing my battery. I never followed the 40-80 rule. What I was doing could be described as the 90-100 rule. No wonder my battery was dying.