iMac question

I am thinking about getting a new Imac when i decide to sell my macbook.
(This may sound like a stupid question to most) Do the new iMacs come with a small power source? Like a battery that will last a couple minutes if there was a power outage?
The only thing keeping me from buying an imac is the issue of not being able to save my work if there was a power outage.

The iMacs the do not have any type of battery backup. You would need to buy a UPS if you wanted that functionality.

No. That's what battery backups or UPS are for.

ok, thanks.