What is sensor assy battery?

I accidentally broke a sensor assy battery? What does it do? Can a car go without it?

Added (1). sensor assy battery = sensor assembly battery. It look something like this http://www.amazon.com/...B00LIT60OW

It's a battery with a big a**. You'll be fine.

Never heard of that before.

Carbon is sensor assy battery

No, the car won't work without it. It's a battery cable with a tiny bit of resistance built in the computer uses to measure battery current. If it's broken, your battery isn't going to be connected.

I have no clue what a sensor assy battery is and I've been working on cars for over 30 years.

Sensor assy do battery power level show