Checking Battery Electrolyte Level

The following procedure can be used to check the electrolyte level in a low-maintenance lead-acid battery.

1. Unscrew and remove the battery cell caps with a flat-bladed screw driver. See Fig 1.
   Fig 1: Battery Cell Cap Removal/Installation - Low-Maintanance

   Courtesy of DAIMLERCHRYSLER CORP.

   1 - BATTERY CELL CAP

   2 - BATTERY CASE

   WARNING: NEVER PUT YOUR FACE NEAR A GASSING, HOT OR SWELLED BATTERY. SERIOUS PERSONAL INJURY MAY RESULT.
2. Wearing safety glasses, look through the battery cell cap holes to determine the level of the electrolyte in the battery. The electrolyte should be above the hooks inside the battery cells. See Fig 2.
   Fig 2: Hook Inside Battery Cells - Low-Maintenance Battery Only

   Courtesy of DAIMLERCHRYSLER CORP.

   1 - TOP OF BATTERY

   2 - HOOK INSIDE BATTERY CELLS

3. Add only distilled water  until the electrolyte is above the hooks inside the battery cells. See Fig 2.