Methods Of Preventing Over-Discharge

The following precautions must be taken to prevent over-discharging a battery.

• The battery surface (particularly its top) should always be kept clean and dry.
• The terminal connections should be clean and tight.
• At every routine maintenance, check the electrolyte level. This also applies to batteries designated as "low maintenance" and "maintenance-free".
  Fig 1: Identifying Battery Surface

  Courtesy of NISSAN MOTOR CO., U.S.A.
• When the vehicle is not going to be used over a long period of time, disconnect the battery cable from the negative terminal. (If the vehicle has an extended storage switch, turn it off.)
  Fig 2: Identifying Battery Terminals

  Courtesy of NISSAN MOTOR CO., U.S.A.
• Check the charge condition of the battery.

Periodically check the specific gravity of the electrolyte. Keep a close check on charge condition to prevent over-discharge.

Fig 3: Checking Hydrometer And Thermometer Indications

Courtesy of NISSAN MOTOR CO., U.S.A.