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Yanmar — Activating the Battery

Maintenance

From a Yanmar service manual covering: YDG2700, YDG2700EV-6EH, YDG2700EV-G6EH, YDG2700EV-GEH, YDG3700, YDG3700EV-6El, YDG3700EV-GEI, YDG5500, YDG5500EV-6El. Check it applies to your exact model before use.

Applies to: Yanmar YDG2700, Yanmar YDG2700EV-6EH, Yanmar YDG2700EV-G6EH, Yanmar YDG3700, Yanmar YDG5500, Yanmar L70V engine, Yanmar L100V engine, Yanmar L4sV L70V L100V engine

Before you start

  • Batteries contain sulfuric acid. ALWAYS wear safety goggles and protective clothing. Flush affected area with clean water and obtain medical treatment if contact occurs.

Procedure

  1. Loosen nuts securing the battery hold-down and lift battery out of frame.
  2. Fill the battery with electrolyte (approximately 1.9 qt / 1.8 L).
  3. Remove the aluminum foil or sealing tape from the top of the battery.
  4. Carefully fill with electrolyte up to the upper level line.
  5. Let battery stand for half an hour to allow trapped gases to escape.
  6. Top off battery with electrolyte if needed.
  7. Install caps onto battery; hand-tighten.
  8. Install battery into generator and reinstall hold-down; tighten nuts.
  9. Connect battery cables and install boot onto the positive (+) terminal.

Specs & values

  • Battery requires approximately 1.9 qt (1.8 L) electrolyte

Full service-parts list: Yanmar YDG2700EV-G6EH →

Source: Yanmar service 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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