Calculating Charge Time - Schumacher Electric SE-4225 Owner's Manual

installed in the vehicle could cause damage to the vehicle's electrical system.
NOTE: If you have charged the battery and it still will not start your car, do not
use the engine start feature, or it could damage the vehicle's electrical system.
1. Set the charge rate switch and the timer to the OFF position.
2. With the charger unplugged from the AC outlet, connect the charger to
the battery following the instructions given in Section 6 (FOLLOW THESE
STEPS WHEN THE BATTERY IS INSTALLED IN A VEHICLE).
3. Plug the charger AC power cord into the AC outlet, and then move the timer
switch from OFF to the HOLD position.
4. With the charger plugged in and connected to the battery of the vehicle, set
the charge rate selector switch to the engine start position.
5. Crank the engine until it starts or 5 seconds pass. If the engine does not
start, wait 3 minutes before cranking again. This allows the charger and
battery to cool down.
NOTE: During extremely cold weather, or if the battery is under 2 volts, charge
the battery for 5 minutes before cranking the engine.
6. If the engine fails to start, charge the battery for 5 more minutes before
attempting to crank the engine again.
7. After the engine starts, move the charge rate selector switch to the off
position and unplug the AC power cord before disconnecting the battery
clips from the vehicle.
8. Clean and store the charger in a dry location.
NOTE: If the engine does turn over but never starts, there is not a problem
with the starting system; there is a problem somewhere else with the vehicle.
STOP cranking the engine until the other problem has been diagnosed and
corrected.
13.

CALCULATING CHARGE TIME

Use the following table to more accurately determine the time it will take to
bring a battery to full charge. First, identify where your battery fits into the
chart.
NR means that the charger setting is NOT RECOMMENDED.
Find your battery's rating on the chart below, and note the charge time given
for each charger setting. The times given are for batteries with a 50% charge
prior to recharging. Add more time for severely discharged batteries.
Using the ENGINE START feature WITHOUT a battery
10
• •