Follow general safety when servicing batteries.

Procedure should include

• wearing required PPE for servicing batteries
• explaining hazards associated with servicing batteries
• inspecting the battery for any damage
• disconnecting the battery ground wire before charging, using appropriate tools, equipment, repair manuals
• following all safety procedures, guidelines, protocols, and manufacturer specifications for servicing batteries. 

Process/Skill Questions:

• Why would a battery need to be serviced?
• Why is it important to wear eye protection when working with batteries?
• What is a hydrometer?