Onan MicroLite 4000 Series User Manual

7-9
Battery Charger Assembly (VR2)
– Begin Spec B, 50 Hz Only
The battery charger is located on the left side of the
genset housing. The battery charger can be
checked with a voltmeter. A voltage measurement
between the B+ terminal and ground (Figure 7-7),
with the genset off should read the starting battery
voltage (approximately 12 VDC). With the genset
running a reading between the B+ terminal and
ground should be slightly more than the first reading
(12.5 to 14 VDC).
If the same or less voltage is measured, connect the
voltmeter between the two AC terminals to measure
the input voltage from the B1-B2 battery charge
winding. During set operation voltage from the
B1-B2 battery charge winding should be approxi-
mately 17 to 19 VAC. If this reading is obtained and
charger output voltage does increase when the
genset is started, replace the battery charger. If low
or no voltage is measured between the AC termi-
nals, check the wiring harness connections and re-
fer to the generator test section.
AC
AC
B+
GROUND
CONNECTION
FIGURE 7-7. BATTERY CHARGER ASSEMBLY
(VR2)

Onan MicroLite 4000 Series Specifications

General

Brand	Onan
Model	MicroLite 4000 Series
Category	Portable Generator
Language	English