Exmark LAZER Z Operator's Manual page 21

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3.3.2
3.3.3
POTENTIAL HAZARD
♦ Charging the battery may produce explosive gasses
WHAT CAN HAPPEN
♦ Battery gasses can explode causing serious injury.
HOW TO AVOID THE HAZARD
♦ Keep sparks, flames, or cigarettes away from battery.
♦ Ventilate when charging or using battery in an
enclosed space.
♦ Make sure venting path of battery is always open once
battery is filled with acid.
Check the voltage of the battery with a digital voltmeter. Locate the voltage reading
of the battery in the table below and charge the battery for the recommended time
interval to bring the charge up to a full charge of 12.6 volts or greater.
IMPORTANT: Make sure the negative battery cables are disconnected and the
battery charger used for charging the battery has an output of 16 volts and 7
amps or less to avoid damaging the battery (see the following chart for
recommended charger settings).
Voltage Percent
Reading Charge
12.6 or greater 100%
12.4 – 12.6 75 – 100%
12.2 – 12.4 50 – 75%
12.0 – 12.2 25 – 50%
11.7 – 12.0 0 – 25%
11.7 or less 0%
POTENTIAL HAZARD
♦ If the ignition is in the "ON" position there is potential
for sparks and engagement of components.
WHAT CAN HAPPEN
♦ Sparks could cause an explosion or moving parts
could accidentally engage causing personal injury.
HOW TO AVOID THE HAZARD
♦ Be sure ignition switch is in the "OFF" position before
charging the battery.
Connect the negative battery cables.
NOTE: If the positive cable is also disconnected, connect the positive (red)
cable and the red wire to the positive terminal on the battery first, then connect
the negative (black) cable and white/white wire to the negative terminal on the
battery (red wire and white/white wire are only on some units). Slip insulator
boot over the positive terminal.
NOTE: If time does not permit charging the battery, or if charging equipment is
not available, connect the negative battery cables and run the vehicle
continuously for 20 to 30 minutes to sufficiently charge the battery.
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DANGER
Maximum
Charger Settings
16 volts/7 amps
16 volts/7 amps
16 volts/7 amps
14.4 volts/4 amps
14.4 volts/4 amps
14.4 volts/2 amps
CAUTION
- 16 -
Charging Interval
No Charging Required
30 Minutes
1 Hour
2 Hours
3 Hours
6 Hours or More