Keyboard Battery drops down to 0% in normal use

Question

Hello,

when I plug in the mobile keyboard with battery included and start to use the tablet over hours,

the battery in the keyboard drops down to 0% and does not switch to the internal battery once it reached the 20% tracehold.

I have seen the correct behaviour before but since I had to reinstall the hole system and installed bios A11 , this bug occures.

Does anyone have an idea how to fix it?

DELL-Brian B · Answer

Do you mean that the keyboard battery will go from 100% to 0% but that it doesn't switch over to use the tablet battery at any point?

What happens if you plug the AC into the tablet and dock it? Do both charge?

VenueUserXYZ · Answer

Hello Brian,

background: my device has been in repair for this problem and came back and it worked - but i had to reinstall the os due to other problems and then the problem came back.... also i installed A11, maybe the problem came due bios update.

the behaviour is that at the beginning tablett and keyboard have 100%... I plug the tablet into the keyboard and start using it. the battery in the keyboards now gets down to 0%. It switches to the tablet battery once 0% are reached. Then the internal tablet battery is used. This behaviour already cost 9% of the capacity of the keyboards battery, as 0% is not very good for a battery as you fore sure know.

Both batteries do charge and will work again.

The problem is only, that there is no switch at 19-20% as it should be...

I thirst thought about a software problem, but it also happens after I did a complete windows refresh...

and idea?

DELL-Brian B · Answer

Hmm... Weird.   Let me set one up and see if I can duplicate this with A11.

VenueUserXYZ · Answer

Any success in duplicating this issue? Any idea where this function is located? Bios? Chipset? Driver?

VenueUserXYZ · Answer

If i understand it right, this is both not the intended behaviour, right?

Tablets & Mobile Devices

Keyboard Battery drops down to 0% in normal use

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