10% battery wear off the factory

I have just received a new 5540, I am posting here however as it seems a more common problem for XPS, and my battery wear is 10%, battery is a 97kwh but recharges only to 87kwh.

I have read the guide about completely discharging the battery and then do a full recharge. Is this a wise thing to do? I don't understand how they can sell a high capacity battery with 10% less capacity. I almost want to request a battery exchange.

What are people experiences with this.

 

Same here. Ordered a new Dell genuine 97kwh battery for my 9550. wear level on arrival 10%.

No clue if this is by design or just coincidence.

 

Probably a design of the battery.

 

Than I would say it's misleading to sell a 87kwh battery for something else. Most the laptops I have had came with 0-3% wear level at the most.

 

... That is by design. The wear level of 10% is set in bios, you can set that to 0 if you want.

 

Where exactly? Because I can't find it.

 

This seems to be not possible in the XPS 9550. I have my doubts about setting a wear level in the bios, since this is Battery related thing.
But maybe this procedure is worth to try https://www.ultrabookreview.com/20942-calibrate-laptops-battery-fix-inaccurate-wear-info/

 

Actually I didn't think enough about that statement, wear level is a property of a battery not a "setting", at most in the BIOS you can set the max % of charge.

That's the guide I was mentioning, but I would prefer an official answer from Dell.

 

Mine, oh wonder, also came with 90% (~87 instead of 97). Every Dell laptop comes with a 10% configured wear level. Was it so hard to google about it?

https://www.dell.com/community/XPS/A-brand-new-Dell-XPS-13-2-in-1-battery-wear-level-9/td-p/7445589

https://www.dell.com/community/Lapt...XPS-9560-shows-90-battery-health/td-p/5080292

https://www.reddit.com/r/Dell/comments/8qjyki/does_anyones_xps_15_9570_have_a_battery_with/


You can set it to custom and then 100%, then the capacity should change over time. But why should you do that, that will just ruin the battery.

 

The wear level that these Dell laptops come with from the factory has absolutely no relation to the battery charge threshold. Setting the threshold to 100% will still only get 87Whr out of the battery. Setting it to 90% will get less than 87Whr. I know this from experience with my XPS 15 7590. It's just a scam that Dell runs, advertising 97Whr when they are really delivering 87Whr, since contacting their support results in a dead end. For these reasons and many others, I've since gotten rid of my XPS 15 7590 and went back to my X1C6.

Battery wear =/= charging threshold.

 

@jeremyshaw That is totally nonsense, if is set at 90% the internal calibration obviously will assume a wear level of 10%. Charging it a few times with the 100% setting and recalibration would count more than the 87. How many times? It is not good for a battery to charge to 100%. Just the normal moron doesnt understand that.