Calculating Charge Time - Schumacher Electric INC100 El Manual Del Propietario

Maintain Mode When the CHARGED (green) LED is lit, the charger has started Maintain Mode. In this
mode, the charger keeps the battery fully charged by delivering a small current when necessary. The
voltage is maintained at 13.2V.
100A Flash Reprogramming
NOTE: Do not attempt to Flash Reprogram a vehicle that has a discharged or defective battery. Make
sure that the vehicle battery is in good condition and fully charged before proceeding. In Flash
Reprogramming Mode, the charger is able to deliver 70A charging current continuously, and to
deliver up to 100A for three minutes.
1. Set MODE to FLASH REPROGRAM. (The VOLTS LED will start blinking.)
2. Use and to adjust voltage to the voltage needed for the vehicle being programmed (refer to OEM
specifications). Voltage selected is shown on the digital display. The unit has a voltage range of
13 to 14.8, with a default of 14.2.
NOTE: When the VOLTS LED stops blinking, the display shows the selected voltage.
3. Press to turn on the output.
4. When finished with Flash Reprogramming, press to exit this mode.
Using the Battery Voltage Tester
Overview This battery charger has a built-in voltmeter to measure your battery's voltage. The
charger does not have a built in load tester. As such, a recently charged battery could have a
temporarily high voltage due to what is known as "surface charge". The voltage of such a battery will
gradually drop during the period immediately after the charging system is disengaged. Consequently,
the tester could display inconsistent values for such a battery. For a more accurate reading, the
surface charge should be removed by temporarily creating a load on the battery, such as by turning
on lights or other accessories for a couple of minutes before you read the display. Read it a couple of
minutes after you have shut the headlights off.
Testing Sequence: There are seven basic steps required to test the battery state of charge:
NOTE: You cannot test the battery voltage while charging.
1. With the charger unplugged from the AC outlet, connect the charger to the battery following the
instructions given in Sections 6 and 7.
2. Plug the charger AC power cord into the AC outlet.
3. The CONNECTED (yellow) LED will light if a properly connected battery is detected.
4. Confirm the CHARGING (yellow) LED is off.
5. Set the DISPLAY to VOLTS.
6. If the output is on, press . If the output is already off, do not press .
7. Read the voltage on the digital display.
General Charging Notes
Fans: The charger is designed to control its cooling fans for efficient operation. Consequentially, it is
normal for the fans to start and stop when maintaining a fully charged battery. Keep the area near
the charger clear of obstructions to allow the fans to operate efficiently. NOTE: The charger has
thermal protection, and it will shut down if it gets too hot.
Voltage: The voltage displayed during charging is the charging voltage and is usually higher than the
battery's resting voltage.

11. 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.
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