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Fanfold Paper
Posts: 7
Registered: ‎11-24-2014
Location: CA
Views: 280
Message 1 of 2

What is a normal battery drain when X1 is off (really off)



I have left a Thinkpad X1 1st gen (20FQ) and a X1 3rd Gen (20LD) off for over 2 months (71 days exactly).

Both machines are really off (Windows 10 fast startup disabled), unplugged from everything, and stored at normal room temperature.

After that period the battery on the 20LD is at 14% and the battery on the 20FQ is fully discharged.


This means that in average the batteries have lost a few percents (2 or 3%) per day. But a quick search online shows that Li-ion batteries should loose a few percents per month when stored. Is the discharge rate on the X1 indicating that something is using energy, even when it is off?


I have seen other posts on this, but they report extremely high discharge rates (like 40% per day). In my case it is not as bad, it does not make the laptops unusable, but still I would like to understand what is going on.


Would this be considered "normal"?


Support Specialist
Posts: 477
Registered: ‎05-02-2019
Location: US
Views: 77
Message 2 of 2

Re: What is a normal battery drain when X1 is off (really off)

In a healthy battery, ions flow freely between a cathode and an anode and batteries degrade even if you don't use them. Hence, if you're able to use the machine within a certain time there's no need to worry. Just make sure that your BIOS version is up to date to avoid problems specially the battery usage.



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