The one to activate the brakes if trailer gets disconnected.
Mine was 6 years old. After leaving on a charger overnight, it couldn't even reach 2 volts.
For safety sake, check and replace if needed. They're only $15.
We had a nasty accident in the area a few months back. The trailer disconnected but brakes didn't activate. Killed most of a family including several kids when the trailer hit them.
Mine was 6 years old. After leaving on a charger overnight, it couldn't even reach 2 volts.
For safety sake, check and replace if needed. They're only $15.
We had a nasty accident in the area a few months back. The trailer disconnected but brakes didn't activate. Killed most of a family including several kids when the trailer hit them.