Yamaha EF1000iS — Battery Charging
Operation
For the Yamaha EF1000iS, from the Yamaha owner's manual.
Before you start
- Do not connect a VRLA battery without a special constant-voltage charger
Procedure
- Start the engine
- Press in the DC protector
- Connect the red battery charger lead to the positive terminal
- Connect the black battery charger lead to the negative terminal
- Turn the economy control switch OFF to start battery charging
Specs & values
- Generator DC rated voltage: 12V
- Charges batteries up to 40Ah that are half-discharged
- Average charging time for half-discharged 40Ah battery: approximately 5 hours
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.