Battery - Husqvarna MZ 48 Operator's Manual

MAINTENANCE

Battery

If the battery is too weak to start the engine, it
must be recharged.
Jumper Cable Use
1. Connect each end of the RED cable to the
POSITIVE (+) terminal on each battery, taking
care not to short against chassis.
2. Connect one end of the BLACK cable to the
NEGATIVE (-) terminal of the fully charged
battery.
3. Connect the other end of the BLACK cable
to a good CHASSIS GROUND on the mower
with the discharged battery, away from the
fuel tank and battery.
To remove cables, reverse order
1. Remove BLACK cable first from chassis and
then from the fully charged battery.
2. Remove RED cable last from both batteries.
The mower is equipped with a maintenance
free battery and does not need servicing.
However, periodic charging of the battery with an
automotive type battery charger will extend its life.
• Keep battery and terminals clean.
• Keep battery bolts tight.
• See chart for charging times.
STD STATE
BATTERY OF
CHARGE
50 Amps
12.6V 100%
12.4V 75%
12.2V 50%
12.0V 25%
11.8V 0%
*Charging time depends on battery capacity,
condition, age, temperature and efficiency of charger
APPROXIMATE CHARGING TIME*
TO FULL CHARGE AT 80
Maximum Rate at:
30 Amps 20 Amps
- FULL CHARGE -
20 min. 35 min. 48 min.
45 min. 75 min. 95 min.
65 min. 115 min. 145 min.
85 min. 150 min. 195 min.
Cleaning the battery and terminals
Corrosion and dirt on the battery and terminals
can cause the battery to lose power.
1. Lift the seat and rotate fully forward until
supported by the seat rod.
2. Loosen the two wing nuts attached to the side
J bolts just enough that the battery mount
bracket slides down off the battery.
3. Using two 1/2" wrenches disconnect BLACK
battery cable then RED battery cable.
4. Carefully remove the battery from the mower
5. Rinse the battery with plain water and dry.
6. Clean terminals and battery cable ends with a
wire brush until shiny.
7. Coat the terminals with grease or petroleum
jelly.
Replacing
1. Install the new battery with terminals in the
same position as the old battery.
2. Connect RED battery cable first to positive (+)
battery terminal.
3. Connect BLACK grounding cable to negative
(-) battery terminal.
4. Slide mount bracket back up over battery and
retighten wing nuts.
IMPORTANT INFORMATION Do not open
or remove caps or covers. Adding or checking
level of electrolyte is not necessary.
F Always use two wrenches for the terminal
O
screws.
10 Amps
90 min.
180 min.
CAUTION! Lead-acid batteries generate
280 min.
explosive gases. Keep sparks, flame and
smoking materials away from batteries.
370 min.
CAUTION! Always wear eye
protection when around batteries.
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