Wii remote shutting off when typing

Hello

I am currently on my Wii, and I'm having some problems.

I use an keyboard (the one from my computer, USB) to type (XD)
When I'm typing for 3 minutes, the Wii remote shuts off.

System Menu: 4.2
Wii remote battery: 3/4

I have one other Wii remote, but that one is charging.

Spoiler: Things in the USB slot:

USB dock:
Keyboard

Normal slot:
Charger (Big Ben, batteries included, inside the Wii Remote)

Like now, it shutted off again.

EDIT: My iPod is tuning the radio, with my headphones. Maybe that is needed to know?

 

Don't the Wiimotes have an inactivity shutdown, to save battery life?

 

Yup it does since when i play my LEGIT (so you all think hehe) animal crossing i was sending a message to someone and it stopped working but it still works and i have not charged them

 

3 mins would be about the average time before they shut off.

 

Yeah, the wii remotes automatically shut off after not being used for a while. Just press any button and it'll re-connect.

 

I thought that was 5 / 10 minutes, or am I wrong?

This is 2 minutes too earlie...

Anyways, the other Wii remote instantly shuts off after 20 seconds...
And that was worse while playin MKWii...
I lost... AND I WAS IN THE LAST CUP!

 

So it shut off while in use your saying?

 

Yup...

I was racing, happy, and suddently my kart stopped moving. I thougt "WTF, my Wii is cheating" but my Wii Remote turned off.

This has happened a few times. The Wii remote was on 4/4 of it's power.

 

Either your Wii remote is broken, or it's just on low battery.

 

It's on 4/4 of its power.

Yesterday it worked correct...