Dab one end of the Q-tip into the vinegar solution.

Rub the inside and outside of the battery cartridge as well as the battery terminal with the Q-tip to remove any acid residue. Use as many Q-tips needed to remove the acid.

Once finished place the used Q-tip(s) inside the small bag with the battery and dispose of the two properly.

All done! Return the cartridge back into the center console and screw in the two 13mm screws.