Exmark QUEST QZS708GEM50200 Operator's Manual page 51

WARNING
Incorrect battery cable routing could damage
the machine and cables causing sparks.
Sparks can cause the battery gasses to
explode, resulting in personal injury.
• Always disconnect the negative (black)
battery cable before disconnecting the
positive (red) cable.
• Always connect the positive (red) battery
cable before connecting the negative
(black) cable.
5. Slide the rubber cover up the positive (red) cable.
Disconnect the positive (red) cable from the
battery post. Retain all fasteners.
6. Remove the battery strap (Figure 53) and lift the
battery from the battery tray.
Checking the Battery Charge
1. Remove the battery from the chassis; refer to
Removing the Battery.
2. Allowing batteries to stand for an extended
period without recharging them will result in
reduced performance and service life. To preserve
optimum battery performance and life, recharge
batteries in storage when the open circuit voltage
drops to 12.4 volts.
Note: To prevent damage due to freezing,
battery should be fully charged before putting
away for winter storage.
3. 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
cable is 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 chart below for recommended
charger settings).
Voltage Percent
Reading Charge
12.6 or 100%
greater
12.4 – 12.6 75–100%
12.2 – 12.4 50–75%
12.0–12.2 25–50%
11.7–12.0 0–25%
0%
11.7 or less
Recommended Jump Starting
Procedure
1. Check the weak battery for terminal corrosion
(white, green, or blue "snow"), it must be cleaned
off prior to jump starting. Clean and tighten
connections as necessary.
CAUTION
Corrosion or loose connections can cause
unwanted electrical voltage spikes at anytime
during the jump starting procedure.
Do Not attempt to jump start with loose or
corroded battery terminals or damage to the
engine may occur.
DANGER
Jump starting a weak battery that is cracked,
frozen, has low electrolyte level, or an
open/shorted battery cell, can cause an
explosion resulting in serious personal injury.
Do Not jump start a weak battery if these
conditions exist.
2. Make sure the booster is a good and fully charged
lead acid battery at 12.6 volts or greater. Use
properly sized jumper cables (4 to 6 AWG) with
short lengths to reduce voltage drop between
systems. Make sure the cables are color coded or
labeled for the correct polarity.
51
Maintenance
Maximum Charging
Charger Interval
Settings
No
16 volts/7
Charging
amps
Required
30 Minutes
16 volts/7
amps
1 Hour
16 volts/7
amps
2 Hours
14.4 volts/4
amps
3 Hours
14.4 volts/4
amps
6 Hours or
14.4 volts/2
More
amps