Makita EG301A Instructions For Use Manual page 24

Battery Charging Procedures :
1) Stop engine.
2) Remove all connections from battery.
3) Insert the plug of exclusive DC cable into DC receptacle.
4) Connect positive (red) clip of DC cable to positive (+) terminal on battery, and
then connect negative (black)
battery.
5) Take out all plugs at the battery electrolyte fluid filler ports.
6) Check the electrolyte fluid level, and refill the distilled water as necessary.
7) Start engine.
8) Make sure that the pilot lamp is turned on.
9) Make sure that the DC circuit breaker is in the ON position.
10) Battery charging will be started.
CAUTION
Do not use both AC and DC output at the same time.
Install correct positive (red) or negative (black) cable to the correct
polarity on the battery.
Connect and disconnect DC cable with engine stopped.
An explosive hydrogen gas is discharged through vent holes in the
battery during the charging process.
Do not allow spark or open flame around the generator or battery during
the charging process.
Electrolyte fluid contains sulphuric acid, and so the fluid can burn eyes
and clothing. Be extremely careful to avoid contact.
If injured, wash the affected area immediately with large quantities of
water and consult a doctor for treatment.
Charging time is varied according to the kind of battery and discharged
level of battery.
Measure the specific gravity of electrolyte fluid by means of hydrometer
every one hour during battery charging.
Make sure if the DC circuit breaker is not turned off.
Battery charging is completed when the specific gravity is in the range of
1.26 to 1.28.
clip of DC cable to negative (-) terminal on
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