Yamaha — Battery charging
Operation · Battery / DC output
From a Yamaha owner's manual covering: EF2800i, EF2800i/YG2800i, YG2800i. Check it applies to your exact model before use.
Before you start
- Never smoke or make and break connections at the battery while charging.
- Clamp the red wire to positive (+) and black wire to negative (-). Do not reverse.
- Battery electrolyte is poisonous and dangerous.
Procedure
- Wind the battery charging lead 2 or 3 turns around the frame and plug into DC receptacle.
- Start the engine.
- Press in the DC protector and install the battery.
Tools required
- battery charging lead (accessory) Amazon
Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.
Specs & values
- DC rated voltage 12 V, rated current 10 A
- At full charge, electrode specific gravity between 1.26 and 1.28
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.