Yamaha EF2800i - Inverter Generator Owner's Manual download pdf (Page 26)

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Operating range of DC power supply

(exclusively for charging 12V battery)

This power source is designed to charge batteries up

to 40Ah that are half-discharged. Do not charge batter-

ies of a higher capacity than 40Ah.

12V battery

The time required for recharging a battery varies

depending on the discharge level of the battery. When

the specific gravity of the battery reaches 1.26 to 1.28,

charging is complete. When charging, check the bat-

tery’s specific gravity once an hour.

The average time for charging a half-discharged 40Ah

battery is approximately 5 hours. Be sure to check the

battery fluid level before charging.

9 Do not connect any load to the battery or use

the engine starter motor while charging. This

causes high current to flow through the gener-

ator which will burn out the coil.

9 Do not connect a VRLA (Valve Regulated Lead

Acid) battery. To charge a VRLA battery, a spe-

cial (constant-voltage) battery charger is

required.

NOTICE

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Yamaha EF2800i - Inverter Generator Owner's Manual Page 26