Yamaha EF2400iS — Battery Charging (DC)
Operation · DC receptacle / battery
For the Yamaha EF2400iS, from the Yamaha owner's manual.
Before you start
- Do not use AC and DC power at the same time or the generator may be damaged.
- Never smoke or make and break connections at the battery while charging; sparks may ignite battery gas.
- Battery electrolyte is poisonous and contains sulfuric acid.
Procedure
- Wind the battery charging lead 2 or 3 turns around the handle and plug into the DC receptacle.
- Start the engine.
- Clamp the red wire to the positive (+) terminal and the black wire to the negative (-) terminal; do not reverse.
- Install the battery; press in the DC protector.
Specs & values
- Generator DC rated voltage 12 V; at full charge electrolyte specific gravity is between 1.26 and 1.28; check specific gravity hourly
Source: Yamaha owner'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.