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Home >> Jaguar >> 2019 >> XF S >> Repair and Diagnosis >> External Pages >> Different car >> Section 159 (Battery And Charging System - General Information -- XE/(760)) >> Battery And Charging System - General Information >> Description And Operation >> Battery Care Requirements (G2283223) >> Confirming The Electrolyte Level

Confirming The Electrolyte Level

WARNING: This page is about a different car, the 2019 Jaguar XE. However, it is still accessible from the selected car via links, so may be relevant.
WARNING:
  • Before the startup battery electrolyte level is checked, refer to the HEALTH AND SAFETY PRECAUTIONS .
  • AGM  batteries are fully sealed for life and no attempt should be made to check or adjust the electrolyte level.
NOTE:
  • In hot climates more frequent checks of the battery electrolyte level and condition are required. If necessary, the battery cells must be topped up using distilled water only.
  • Only flooded startup batteries can have the electrolyte level topped up.

On certain flooded startup battery types the electrolyte level will need to be checked.

CAUTION: Do not overfill the flooded startup battery cell with distilled water.
NOTE: Maintenance free AGM  batteries are sealed and therefore cannot have the electrolyte topped up.
  1. Make sure the flooded startup battery is of a type suitable for topping up. These types of flooded startup batteries will have cell plugs visible on the top face of the startup battery or a removable access panel to allow access to the cells.
  2. On startup batteries with a clear or opaque case and level marks, check the electrolyte level by visual inspection of the maximum level indicator mark on the startup battery casing. The maximum level indicator mark indicates adequate electrolyte level above the startup battery separators.
  3. On startup batteries with black cases, remove the cell plugs or access panel and make sure that the electrolyte level is level with the indicator in the cell hole. A flashlight may be required to see the electrolyte level on the flooded startup battery.
  4. If the electrolyte level is low, top up using distilled water only.
  5. Install the startup battery cell plugs.
  6. Charge the startup battery for 1 hour (60 minutes) using a recommended charger. If a GRX-3080 charger is used select manual charging for 1 hour (60 minutes).
  7. Do a battery test using the recommended test equipment. Refer to the Battery Test (4.6) and the 'EQUIPMENT' (5) in this procedure.
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