Battery Charger; Res Battery Charger - Kohler 12RES Operation

2.8 Battery Charger

2.8.1

RES Battery Charger

RES model generator sets are equipped with a 6-amp
float/equalize battery charger to maintain the engine
starting battery. The charger's power cord must be
connected to a 120 VAC power source. Figure 2-6
illustrates the battery charger.
The battery charger uses an AGS 10 inline fuse. The
fuse is located in the battery lead. See Figure 2-6.
1
INDICATOR
Red: VOLTS= 11.8- 14.0
AMPS= 5.0- 6.0
Red & Green: VOLTS= 14.0- 14.5
AMPS= 1.5- 5.0
Green: VOLTS= 13.0- 13.6
AMPS= 0.1- 1.5
CAUTION: To reduce the risk of electrical shock,
connect only to properly grounded outlet.
INPUT: 115 VAC 50/60Hz @ 1.6A
OUTPUT: 12 VDC @ 6 Amps
MAX. BAT.: 180 Amp Hr. Max.
DATE:
Allowable Battery Types: Lead Acid a
4
3
1. LED indicators
2. AC power cord
3. Fuse
4. Battery leads, 12 VDC
Figure 2-6 6-Amp Float/Equalize Battery Charger
26 Section 2 Operation
6 AMP AUTOMATIC
BATTERY CHARGER
R
C US LISTED
BATTERY CHARGER
53AB
2608KH
nd Gel Cell
2
Battery Charger Operation
Figure 2-7 illustrates the three-stage charging method.
Red and green LEDs indicate charger operation. The
chart in Figure 2-8 describes the LED indicator
operation during each stage of the charging process.
See Section 4.4 for battery charger troubleshooting
information, if necessary.
Figure 2-7 Charging Method
Display Operating Condition
Red ON When the red LED is on, it indicates the
Green battery is discharged and the battery charger
OFF is recharging at the BULK rate (stage 1).
This charging rate is 6 amps. While the red
LED is on, the voltage measured (with the
battery charger on) will be 11.8- 14 volts.
If the red LED stays on for more than
24 hours, refer to Section 4.4 in this manual.
Red ON When both the green and the red LEDs are
Green ON on, the battery charger is charging at an
ABSORPTION rate of between 1.5 and 5
amps (stage 2). This mode of charging
gradually tops off your battery, and reduces
harmful sulfating. While both LEDs are on,
the voltage measured (with the battery
charger on) should be approximately
14.0- 14.5 VDC.
If both LEDs stay on longer than 24 hours,
refer to Section 4.4 in this manual.
Red OFF When the green LED is on, the battery
Green ON charger is charging at a FLOAT or
MAINTENANCE rate of less than 1.5 amps
(stage 3). Your battery is now 90% charged
and ready for use. This float charging current
will gradually decrease to as low as 0.1 amps
as the battery reaches 100% charge. It will
now be kept at full charge without
overcharging.
If the green LED stays on when your battery
is known to be low, refer to Section 4.4 in this
manual.
Figure 2-8 Battery Charger LED Indicator Functions
TP-6515 2/21