Training Bulletin 065- Vehicle Battery Systems

Question 1

The “Six-Battery System” consists of six (two sets of three), lead acid 12 volt batteries. These batteries are rated at ____ cold crank amperes at 0 degrees F.; they have a reserve capacity of ____ minutes at ___ amperes draw per hour.

Answer 1

950 cold crank amps

190 minutes

25 amps

Question 2

Diesel engines draw approximately ___ amperes per cubic inch when starting

Answer 2

2 amps

Question 3

____ of the six batteries are used to start the apparatus. The sixth battery (_________) ( location) is not connected to the starting circuit and is strictly used to keep the 800 MHz Radio, the UHF and VHF Radio and the MDT powered at all times.

Answer 3

5

Right rear

Question 4

The combined use of the 800 MHz Radio, the UHF and VHF Radio, and the MDT units, causes a constant ___ amperes per hour draw on the battery system.

Answer 4

8 amps

Question 5

When the apparatus is out of service for an extended period of time (over ___ hours or the on-board battery charger cannot be plugged in, the radio “cut off switch” must be turned off to avoid running down the batteries. This switch is located inside the radio compartment.

Answer 5

Over 10 hours

Question 6

All apparatus have been installed with a “low voltage warning system.” An audible warning device activates anytime the batteries fall below ___ volts. When the device activates, the apparatus must either be started or the on-board battery charger must be plugged in.

Answer 6

12.2 volts