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Home›Repair guides›Volvo Penta›Battery. Maintenance - Filling

Volvo Penta — Battery. Maintenance - Filling

Maintenance · Electrical system

From a Volvo Penta operator's manual covering: EDC 4, TAD722GE, TD520GE, TD720GE. Check it applies to your exact model before use.

Applies to: Volvo Penta TAD722GE, Volvo Penta TD520GE, Volvo Penta TD720GE

Before you start

  • Battery electrolyte is highly corrosive
  • Fire and explosion hazard

Procedure

  1. Keep batteries dry and clean; clean oxidation from poles with a copper brush
  2. Tighten terminals securely and grease with terminal grease or Vaseline
  3. Electrolyte level 5-10 mm (0.2-0.4 in) above cell plates
  4. Top up with distilled water as necessary
  5. After filling, charge battery at least 30 minutes by running engine at fast idle

Tools required

Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.

Specs & values

  • Electrolyte level 5-10 mm above cell plates
  • Charge at least 30 minutes

Source: Volvo Penta operator's manual. Steps and values are as documented; always cross-check against the official manual and any later revisions for your exact serial number before servicing.

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