Newbee question on power


I am planning to create a little firefighter car with 3V pump.
What happens when i use 7-9V.

Will it overheating? Or just faster pumping?

I thought maybe i have to uae a 3V to 9V converter as solution for arduino nano + pump

Regards Kenjie


Okay i was only afraid to wait several weeks for a new pump if damaged.
Now try and error wins, it is working.

So it is not recommanded, but it works.
On mre expensiv parts this should be verified by whitepaper/datasheet

Cheers Kenjie

What happens when i use 7-9V.

It will work, but the motor will burn out quickly.