Some guy at the car place was trying to find out why my car battery keeps dying.

He applied some device to it to keep "adding a load" to it which I interpret as adding more and more resistance for a given voltage.

He said "feel it" because the terminals were getting more and more hot, which is bad I guess, because there was a bigger and bigger current flowing which is not what we want?

From my understanding, a car battery is DC, so it follows Ohm's Law....

V = IR

So if he's applying a larger and larger "load" or resistance

I = V / R, wouldn't the current get SMALLER with a bigger load?

Confused.

 

Hello,

When more and more loads are putten parallel on the car battery the total current will rise.
See this page of the eBook for more info:
http://www.allaboutcircuits.com/vol_1/chpt_5/3.html

Greetings,
Bertus

 

He was probably using a carbon pile resistor to apply the load to the battery. To increase the current, he decreases the resistance. The device he was using may appeared to have been "increasing the load", but what it was actually doing was decreasing a resistance.