Stiga 2021 Edition PARK 320 P Workshop Manual page 109

WORKSHOP MANUAL
PARK
3. Scrub the exterior of the battery and cable terminals with a non-metallic brush which has been
dipped into a mixture of baking soda and water.
4. After cleaning, apply a thin coat of grease or petroleum jelly to terminals and cable ends to
delay corrosion.
c) Recharging the battery
NOTE - ALWAYS follow the information provided on the battery by the battery manufacturer.
Contact the battery manufacturer for further instructions on how to charge the battery.
• To charge the battery:
1. Remove the battery from the machine
2. Place the battery on bench or other well ventilated place.
3. Connect the positive (+) lead of the charger to the positive (+) terminal, and the negative (-)
lead to the negative (-) terminal.
The approximate charge status can be determined by the remaining open circuit voltage (OCV) at
room temperature, and the charge time required can then be estimated, as indicated in the table
of examples.
Voltage (OCV)
12.60
12.40
12.20
12.00
11.80
• If you use a 12 volt automatic battery charger, select a good quality charger with minimum 5-10
Ampere output at 15 VDC and charge depending on the battery charge status (see table).
• If you are using a constant current charger, charge at 1-2 Amperes for the time indicated in the
table.
IMPORTANT Charging at higher rates will damage the battery and cause excessive gassing and
acid spewing.
d) Charging with an alternator
Under normal conditions the engine alternator will keep the battery charged. If the machine is not
used for a prolonged period of time and the battery is completely discharged, it is necessary to
recharge it with the battery charger, proceeding as indicated above.
e) Emergency jump-start with cables
Jump starting, battery charging, or replacement is required when the starter motor will not crank
the engine.
Charge % Charging time
100% --
75% 4 hours
50% 9 hours
25% 13 hours
0% 16 hours
Chapter
9 - ELECTRICAL SYSTEM
NOTE The standard battery voltage
range is 12.6-13.1V, up to a maximum of
14.4V; 10.5 V is the minimum voltage to
be able to recharge.
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