Exact protocol should be followed when replacing the battery. Make sure not to use other tools, which may short-circuit the battery, and do not use a battery smaller than the one currently installed.
 
1. Turn off the engine and extract the key.
2. When replacing the battery, first remove cables from the negative     terminal and then from the positive terminal of the battery.
3. Unfasten the bolts of the installation rack and remove the old     battery.
4. Place the new battery on the installation rack and tighten the bolts.     Press down using the hands to make sure that the battery is firmly in     place.
5. When connecting cables, connect it first to the positive terminal and     then to the negative terminal of the new battery.

 
ⓐ Always turn off the car engine before replacing the battery.
ⓑ Mark the positions of the terminals first to position the battery correctly.
ⓒ When removing the terminals, always remove the grounded terminal first to prevent     short-circuiting.
ⓓ If the installation rack and cables are corroded, repair before attempting installation.
ⓔ It is easy for the cable terminals to become corroded due to the sulfuric acid. Should     corrosion occur, remove with fine sandpaper or a steel brush before attempting     installation.
ⓕ Keep the replaced battery out of the reach of children and dispose of accordingly.