Kohler 12RES, 8.5RES manual 2.6.1Battery Charger Operation

2.6 Battery Charger

The generator set is 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 2-5 illustrates the battery charger.

The battery charger uses an AGS 10 inline fuse. The fuse is located in the battery lead. See Figure 2-5.

2.6.1Battery Charger Operation

Figure 2-6 illustrates the three-stage charging method. Red and green LEDs indicate charger operation. The chart in Figure 2-7 describes the LED indicator operation during each stage of the charging process.

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	6 AMP AUTOMATIC
Green:	VOLTS= 13.0--13.6
	AMPS= 0.1--1.5	BATTERY CHARGER

CAUTION:To reduce the risk of elect rical shock, connect only to properly gr ounded outlet.

INPUT: 115 VAC 50/60Hz @ 1.6A
OUTPUT: 12 VDC @ 6 Amps	R
C	US LISTED
MAX. BAT.: 180 Amp Hr. Max.	BATTERY CHARGER
	53AB
DATE:	2608KH
Allowable Battery Types: Lead Acid a	nd Gel Cell

42

3

1.LED indicators

2.AC power cord

3.Fuse

4.Battery leads, 12 VDC

Figure 2-5 6-Amp Float/Equalize Battery Charger

	Figure 2-6 Charging Method
Display	Operating Condition
Red ON	When the red LED is on, it indicates the battery is discharged and the battery charger is recharging at the BULK rate
Green OFF	(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 4.5 in this manual.
Red ON	When both the green and the red LEDs are on, the battery charger is charging at an ABSORPTION rate of between 1.5 and
Green ON	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 4.5 in this manual.
Red OFF	When the green LED is on, the battery charger is charging at a FLOAT or MAINTENANCE rate of less than 1.5 amps
Green ON	(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 4.5 in this manual.

Figure 2-7 Battery Charger LED Indicator Functions

TP-6331 5/04 Section 2 Operation 7