Battery Wear Advice

I'm on an Hp Envy 14, running with the i5 520. Currently my battery wear is as follows:

Primary: 12.1%
Slice: 31.7%

I purchased my Envy 11/2010 and have used it pretty much daily as a full time graduate student so I'm using wifi, etc so that you have an idea of how much I'm using the machine

I'm getting about 3:30 runtime with both the std battery and slice.

Is this normal? I used to get about 7 hours out of it when I first got it. Is it time to cave and buy another slice and keep my original as a backup? Or is there something that I can do to recondition it and maybe get more life out of it.

Thanks!

 

First of all try draining your primary battery and slice battery to a complete 0% dead on. Even when it first turns off cause it doesn't have enough battery or whatever keep turning it on till it nothing happens when you press power. Then begin charging your laptop (overnight) the next morning turn it and check how to battery performance is with primary, slice, primary/slice combo. If its bad still, you might have to replace the primary or slice or even both.

 

One rule to remember about Li-Ion batteries- they do not like being discharge to a compelte 0. What I do to keep mine healthy (and I have ezactly the same setup as yours since Sep 2010) is connect it to power when battery is at 20% or more. So fat my main battery is 10.5% wear and my slice is 8% wear.

Read about Li-Ion batteries and you will know that what I am telling you is right.

The previous post from reNeglect would help re-calibrate the battery to make sure it shows the right capacity, but will definitely not do anything to condition it. He is talking about things that needed to be done with old types of batteries, definitely not Li-Ion - ever!