Dell XPS13 2015 Battery Life

Hi guys, I did a powercfg battery report in command prompt and my battery results are as below.

Why in just 2 months. 7% of the battery capacity is gone? My XPS13 is only 3 months old.

Anyone has similar results?

 

How have you been using the laptop battery? How often do you use the laptop on battery? And how much does the battery discharge when you are using it on battery?

 

Not sure about that, but your "full charge capacity" degradation looks like some kind of stabilisation of a chemical reaction.
Maybe i'ts normal for this kind of battery ? Loosing some % at the very firsts charges, then slowly degrades ?

 

Well, I'm curious as to usage... because depending on usage, that battery degradation could be completely normal.

A LiIon battery has about 300 - 500 full charge / discharge cycles in its lifetime. So if the OP is using the laptop heavily on battery, and has done about 30 full charge / discharge cycles over the past 2 months, then it isn't unreasonable to see a 7% capacity drop.

The good news is that batteries are relatively inexpensive to replace. Even after 1.5 years, you're looking at about $60 - $100 for an OEM branded replacement battery. And that's not too bad of a "maintenance" price to pay to get another 1.5 yuears out of a laptop.

 

Here is mine. It looks like we both got our machines at around the same time. I can't remember whether or not earlier reports showed the design capacity as being 54,000 as yours does.

Model is a QHD/i5 and the battery report says I typically get about 7 hours with it and it's always unplugged until I get the 7% warning. I probably use it 2-3 hours a day.

 

I used mine mainly on AC and about one hour on battery everyday. Weird is my capacity is dropping like crazy while yours has maintain constantly. Is my battery faulty or what?

or is my power setting set to adaptive and battery is slowly reducing the capacity?

 

Speaking about adaptive setting (in bios), does someone know exactly how it behaves, as opposite as standard setting ?

I use my laptop mainly on battery, waiting for it to hit the 7% alert, then charge it to the max, and I wonder which setting is more adapted to my usage.

 

Make sure you do not charge anywhere near to 100% if you are using it mainly on AC anyway. Use the Dell Power manager tool to set it to charge to max 80%. Also don't let it drop below 25-30% if there is no need.

I received my laptop on 22 march. I've like 55-60 charge cycle already but according to powercfg, batterycare and the dell power manager 0% battery drain. Still looking pretty at 52,326. I charge to max 88% and Always try to charge when it drops below 30%. Never went below 10% once.

7% is way too low. Try 20% and charging definitely not above 95%.

 

Thanks for the advice
Do you think I should let the battery setting to "adaptive" in bios, or should I switch to "standart" ?

 

Am not sure if the BIOS settings override the Dell power manager settings, probably better to put it back to the standard settings.

In the Power manager app you can customize the charge settings so it doesnt charge to 100%, probably better than letting windows do it by using adaptive..

 

I don't use Dell power manager, so I think my setting is the BIOS setting.

I'm gonna configure the BIOS so it won't charge past 95% (is it enough to preserve the battery ?), and take the habit to charge it when the battery hits 20%.