8.3 Battery Charger Trouble Shooting
Page 23
How the smart chargers work
The charger is programmable for wet, gel and AGM battery types.
Phase one: The charger is designed to put full output of 10 to 12 amps until the battery voltage reaches
28.8 volts for the first phase (red LED), otherwise it will time out. The maximum time limit for wet
batteries is 12 hours for setting 1 and 15 hours for setting 2. Gel batteries have a 11 hour limit for the
first phase.
Note: The first phase is when heavy and prolonged gassing can occur, if one or more cells are not
reaching adequate voltage in the designated time programmed into the charger.
Phase two: The 28.8 volts is maintained (yellow LED) until the output current decreases to 3.5 -4.7
amps for wet batteries, then voltage should rise until it reaches 32.4 volts. The green LED (full charge)
should light.
Wet batteries have a time limit of 5 hours for phase two.
Gel batteries will receive 28.8 volts until the chargers output reaches .5 amps (green LED, full charge).
Maintenance Charge: Once the batteries reach the full charge status, the charger will maintain
(float/maintenance charge) the batteries at 26.4 volts for wet batteries and 27.3 volts for gel batteries,
provided the charger is plugged into the A.C. outlet. Note: This will prevent the batteries from
discharging, if the machine is not used for long periods of time.
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