Question

post - test
do all of the following when handling 12 - volt batteries except:
a. disconnect all electrical loads.
b. verify that the battery charger is off before connecting or disconnecting clamps.
c. remove vent caps from maintenance - free batteries.
d. use the correct charger type.

Explanation:

Maintenance - free batteries are designed so that their vent caps do not need to be removed. Disconnecting electrical loads (A) is a safety measure to prevent electrical surges. Verifying the battery charger is off (B) is a safety step to avoid electrical shocks. Using the correct charger type (D) ensures proper charging and battery safety.

Answer:

C. Remove vent caps from maintenance - free batteries.