Battery Design Capacity vs Full Charge Capacity

Thank you for your message. This is working as designed, a Lithium battery loses capacity constantly & this happens at a higher rate in the initial few months.

The normal lifespan of a lithium battery is 18-24 months, considering this the battery is performing as designed.

You can check the Dell battery FAQ here

For my reference, please click on the message tab next to your avatar– click “New Message” & search for my Dell username (Dell-Sreejith R) & send a private message with the service tag, registered name & email address.

How to find service tag

Battery health lost 30% in 3 months and this you think is expected?

Something is very wrong with Dell. Very very wrong.

Hello,

At work, we often use Lenovo Thinkpad laptops. They have a procedure for re-calibrating the battery (by letting it discharge fully and then charging it back) and the battery regains quite all of it's capacity. I do not know what they do exactly on the battery controller or battery itself.

We often keep our laptops for many years (it is a PITA to change them as we have a lot of software/configuration on them) and we never see a failing battery. So maybe Dell could investigate a little further on this issue ? Just my 2¢

Now I'm down to 24,419

My Laptop battery died within the year, dell changed it, the new battery was replaced and in less than 3 months it's at 70% capacity. I am not sure if every dell laptop has this problem or this model is special 

@SreejithR I forgot to tag you, please see above

I wonder if the Windows update in the middle of the night might be the culprit?  

I guess all of you are aware that on Windows  Auto-Update the computer typically comes on in the (not normal usage hours) and looks for a connection to update, which it might do if it finds a connection.  A danger in that it will not only use up battery, but overheat in the bag.   

It finally showed that it was at the end of its life (less than a year so still under warranty) so dell sent me a new one.  It now shows ~38,000 max and the charge capacity of ~30,000 right out of the box...ugh

I purchased a Dell Inspiron 3583 and within 2 days the full charge capacity dropped 940 mWh is that normal?

Design Capacity is 41998 mWh and Full charge capacity is 41051 mWh.

Hi oneat001

Please click on the link below, hopefully it will help answer your question.

Notebook Battery Report shows a difference between the battery design and the full charge capacity on your system battery

 https://www.dell.com/support/article/en-uk/sln313213/notebook-battery-report-shows-a-difference-between-the-battery-design-and-the-full-charge-capacity-on-your-system-battery?lang=en

I have an Inspiron 13 7000, 

The values for the Full Charge Capacity vary up and down A LOT! I thought they were supposed to go down only, but mine jumped from 23,214 mWh to 36,092 mW to 37,267mW. Now is at 17,852 mWh!

Battery capacity history
Charge capacity history of the system's batteries
PERIOD FULL CHARGE CAPACITY DESIGN CAPACITY
2018-01-22 - 2018-01-29 34,702 mWh 37,996 mWh
2018-01-29 - 2018-02-05 34,702 mWh 37,996 mWh
2018-02-05 - 2018-02-12 34,702 mWh 37,996 mWh
2018-02-12 - 2018-02-19 34,702 mWh 37,996 mWh
2018-02-19 - 2018-02-26 34,702 mWh 37,996 mWh
2018-02-26 - 2018-03-12 34,447 mWh 37,996 mWh
2018-03-12 - 2018-03-19 28,865 mWh 37,996 mWh
2018-03-19 - 2018-03-26 28,865 mWh 37,996 mWh
2018-03-26 - 2018-04-02 28,865 mWh 37,996 mWh
2018-04-02 - 2018-04-09 28,865 mWh 37,996 mWh
2018-04-09 - 2018-04-16 28,865 mWh 37,996 mWh
2018-04-16 - 2018-04-23 28,865 mWh 37,996 mWh
2018-04-23 - 2018-04-30 28,865 mWh 37,996 mWh
2018-04-30 - 2018-05-07 28,865 mWh 37,996 mWh
2018-05-07 - 2018-05-14 28,865 mWh 37,996 mWh
2018-05-14 - 2018-05-21 28,865 mWh 37,996 mWh
2018-05-21 - 2018-05-28 28,865 mWh 37,996 mWh
2018-05-28 - 2018-06-04 28,865 mWh 37,996 mWh
2018-06-04 - 2018-06-11 28,865 mWh 37,996 mWh
2018-06-11 - 2018-06-18 28,865 mWh 37,996 mWh
2018-06-18 - 2018-06-25 28,865 mWh 37,996 mWh
2018-06-25 - 2018-07-02 28,865 mWh 37,996 mWh
2018-07-02 - 2018-07-09 28,865 mWh 37,996 mWh
2018-07-09 - 2018-07-16 32,879 mWh 37,996 mWh
2018-07-16 - 2018-07-23 34,531 mWh 37,996 mWh
2018-07-23 - 2018-07-30 34,531 mWh 37,996 mWh
2018-07-30 - 2018-08-06 34,531 mWh 37,996 mWh
2018-08-06 - 2018-08-13 34,531 mWh 37,996 mWh
2018-08-13 - 2018-08-20 33,822 mWh 37,996 mWh
2018-08-20 - 2018-08-27 33,254 mWh 37,996 mWh
2018-08-27 - 2018-09-05 33,254 mWh 37,996 mWh
2018-09-05 - 2018-09-10 33,254 mWh 37,996 mWh
2018-09-10 - 2018-09-17 30,578 mWh 37,996 mWh
2018-09-17 - 2018-09-27 23,188 mWh 37,996 mWh
2018-09-27 - 2018-10-01 23,188 mWh 37,996 mWh
2018-10-01 - 2018-10-09 23,188 mWh 37,996 mWh
2018-10-09 - 2018-10-15 23,188 mWh 37,996 mWh
2018-10-15 - 2018-10-25 23,188 mWh 37,996 mWh
2018-10-25 - 2018-10-29 23,188 mWh 37,996 mWh
2018-10-29 - 2018-11-06 23,188 mWh 37,996 mWh
2018-11-06 - 2018-11-12 23,188 mWh 37,996 mWh
2018-11-12 - 2018-11-19 23,188 mWh 37,996 mWh
2018-11-19 - 2018-12-04 23,214 mWh 37,996 mWh
2018-12-04 - 2018-12-10 36,092 mWh 37,996 mWh
2018-12-10 - 2018-12-17 27,899 mWh 37,996 mWh
2018-12-17 - 2019-01-06 36,092 mWh 37,996 mWh
2019-01-06 - 2019-01-07 36,092 mWh 37,996 mWh
2019-01-07 - 2019-01-15 36,092 mWh 37,996 mWh
2019-01-15 - 2019-01-21 36,740 mWh 37,996 mWh
2019-01-21 - 2019-01-28 37,267 mWh 37,996 mWh
2019-01-28 - 2019-02-04 37,267 mWh 37,996 mWh
2019-02-04 - 2019-02-11 37,267 mWh 37,996 mWh
2019-02-11 - 2019-02-18 37,267 mWh 37,996 mWh
2019-02-18 - 2019-02-25 37,267 mWh 37,996 mWh
2019-02-25 - 2019-03-05 37,267 mWh 37,996 mWh
2019-03-05 - 2019-03-12 36,551 mWh 37,996 mWh
2019-03-12 - 2019-03-18 34,348 mWh 37,996 mWh
2019-03-18 - 2019-03-30 34,348 mWh 37,996 mWh
2019-03-30 - 2019-04-01 34,348 mWh 37,996 mWh
2019-04-01 - 2019-04-09 34,348 mWh 37,996 mWh
2019-04-09 - 2019-04-17 34,348 mWh 37,996 mWh
2019-04-17 - 2019-04-23 34,348 mWh 37,996 mWh
2019-04-23 - 2019-04-29 34,348 mWh 37,996 mWh
2019-04-29 - 2019-05-06 34,348 mWh 37,996 mWh
2019-05-06 - 2019-05-13 34,348 mWh 37,996 mWh
2019-05-13 - 2019-05-22 34,348 mWh 37,996 mWh
2019-05-22 - 2019-06-09 34,348 mWh 37,996 mWh
2019-06-09 34,348 mWh 37,996 mWh
2019-06-10 - 2019-06-23 34,348 mWh 37,996 mWh
2019-06-23 - 2019-06-24 34,348 mWh 37,996 mWh
2019-06-24 - 2019-07-02 34,348 mWh 37,996 mWh
2019-07-02 - 2019-07-09 34,348 mWh 37,996 mWh
2019-07-09 - 2019-07-15 34,348 mWh 37,996 mWh
2019-07-15 - 2019-07-23 34,348 mWh 37,996 mWh
2019-07-23 - 2019-07-31 34,348 mWh 37,996 mWh
2019-07-31 - 2019-08-08 34,348 mWh 37,996 mWh
2019-08-08 - 2019-08-12 34,348 mWh 37,996 mWh
2019-08-12 - 2019-08-24 34,348 mWh 37,996 mWh
2019-08-24 - 2019-09-03 34,348 mWh 37,996 mWh
2019-09-03 - 2019-09-11 34,348 mWh 37,996 mWh
2019-09-11 - 2019-09-16 34,335 mWh 37,996 mWh
2019-09-16 - 2019-09-23 32,786 mWh 37,996 mWh
2019-09-23 - 2019-09-30 32,786 mWh 37,996 mWh
2019-09-30 - 2019-10-07 32,786 mWh 37,996 mWh
2019-10-07 - 2019-10-14 32,638 mWh 37,996 mWh
2019-10-14 - 2019-10-21 31,897 mWh 37,996 mWh
2019-10-21 - 2019-11-04 32,619 mWh 37,996 mWh
2019-11-04 - 2019-11-13 29,526 mWh 37,996 mWh
2019-11-13 - 2019-11-19 29,526 mWh 37,996 mWh
2019-11-19 - 2019-11-25 29,526 mWh 37,996 mWh
2019-11-25 - 2019-12-04 26,564 mWh 37,996 mWh
2019-12-04 - 2019-12-09 17,852 mWh 37,996 mWh
2019-12-09 - 2019-12-16 17,852 mWh 37,996 mWh
2019-12-16 - 2019-12-24 17,852 mWh 37,996 mWh
2019-12-24 - 2019-12-30 17,852 mWh 37,996 mWh
2019-12-30 - 2020-01-09 17,852 mWh 37,996 mWh
2020-01-09 - 2020-01-13 17,852 mWh 37,996 mWh
2020-01-13 - 2020-01-20 17,852 mWh 37,996 mWh
2020-01-20 - 2020-01-28 17,852 mWh 37,996 mWh
2020-01-28 - 2020-02-04 17,852 mWh 37,996 mWh
2020-02-04 - 2020-02-10 17,852 mWh 37,996 mWh
2020-02-10 - 2020-02-17 17,852 mWh 37,996 mWh
2020-02-17 - 2020-02-24 16,793 mWh 37,996 mWh
2020-02-24 - 2020-03-06 14,934 mWh 37,996 mWh
2020-03-06 - 2020-03-09 14,934 mWh 37,996 mWh
2020-03-09 - 2020-03-16 14,934 mWh 37,996 mWh
2020-03-16 - 2020-03-31 14,934 mWh 37,996 mWh
2020-03-31 - 2020-05-02 14,934 mWh 37,996 mWh
2020-05-02 - 2020-05-09 14,934 mWh 37,996 mWh
2020-05-09 - 2020-05-13 14,934 mWh 37,996 mWh
2020-05-13 - 2020-06-23 14,934 mWh 37,996 mWh
2020-06-23 - 2020-07-03 14,934 mWh 37,996 mWh
2020-07-03 - 2020-07-10 12,016 mWh 37,996 mWh
2020-07-10 - 2020-07-17 12,016 mWh 37,996 mWh
2020-07-17 - 2020-07-24 12,016 mWh 37,996 mWh
2020-07-24 - 2020-07-31 12,016 mWh 37,996 mWh
2020-07-31 - 2020-08-07 12,016 mWh 37,996 mWh
2020-08-07 - 2020-08-14 12,016 mWh 37,996 mWh
2020-08-14 - 2020-08-21 12,016 mWh 37,996 mWh
2020-08-21 - 2020-08-28 12,016 mWh 37,996 mWh
2020-08-28 - 2020-09-04 12,016 mWh 37,996 mWh
2020-09-04 12,016 mWh 37,996 mWh
2020-09-05 12,016 mWh 37,996 mWh
2020-09-06 12,016 mWh 37,996 mWh
2020-09-07 12,016 mWh 37,996 mWh
2020-09-08 12,016 mWh 37,996 mWh
2020-09-09 12,016 mWh 37,996 mWh
2020-09-10 12,016 mWh 37,996 mWh
2020-09-11 12,016 mWh 37,996 mWh
2020-09-12 12,016 mWh 37,996 mWh
2020-09-13 12,016 mWh 37,996 mWh
2020-09-14 12,016 mWh 37,996 mWh
2020-09-15 12,016 mWh 37,996 mWh