Husqvarna W548 Operator's Manual page 18

MAINTENANCE
Battery
If the battery is too weak to start the engine, it
must be recharged. Jump starting can damage
engine and electrical system components and is
not recommended.
CAUTION! Lead-acid batteries generate
explosive gases. Keep sparks, flame and
smoking materials away from batteries.
IMPORTANT Do not open or remove caps or
covers. Adding or checking level of electrolyte
is not necessary.
IMPORTANT DO NOT fast charge. Charging
at a higher rate will damage or destroy battery.
Use an automatic charger designed for use
with your battery. Follow the information
provided on the battery and charger.
Warning! Frozen batteries can explode
and result in death or serious injury. Let the
battery thaw before charging.
CAUTION! Wear eye protection when
around batteries.
The mower is equipped with a maintenance
free battery. Servicing is not necessary. Periodic
charging of the battery with an automotive type
battery charger will extend its life.
• Keep the battery and terminals clean.
• Keep the battery bolts tight.
• See the 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
18
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 battery and terminals
Corrosion and dirt on the battery and terminals
can cause the battery to lose power.
1. Using a 1/2" wrench, disconnect BLACK
battery cable then RED battery cable.
2. Remove the rear bolt holding the battery to
the tray.
3. Lift and slide the battery out from the rear side
of the tray.
4. Rinse the battery with plain water and dry.
5. Clean terminals and battery cable ends with a
wire brush until shiny.
6. Coat the terminals with grease or petroleum
jelly.
Replacing battery
1. Examine the isolator pad that lines the battery
tray. Replace the pad if necessary before
installing a new battery.
2. Install the new battery with positive terminal
at the rear.
3. Coat the terminals with grease or petroleum
jelly.
4. Connect RED battery cable first to positive (+)
battery terminal.
5. Connect BLACK grounding cable to negative
(-) battery terminal.
F 6. install the rear battery tray bolt.
O
IMPORTANT The mower is equipped with
10 Amps
a 12-volt negative grounded system. The
other vehicle must also be a 12-volt negative
grounded system. Do not use your mower to
90 min.
start other vehicles.
180 min.
280 min.
Warning! Do not short battery terminals
by letting a wrench or other objects contact
370 min.
the two terminals at the same time. Before
connecting battery, remove metal bracelets,
wristwatch bands, rings, etc.
The positive terminal must be connected first to
prevent sparks from accidental grounding.