.A complete Parts List is available at www.MillerWelds.com
OM-217 455 Page 27
SECTION 8 − OPERATING OPTIONAL BATTERY CHARGER

8-1. Battery Charge Controls

!Have only qualified persons charge
batteries.
!Do not use battery charger for jump
starting.
NOTICE − D o not use generator power ac re-
ceptacles while using optional battery charger.
Low voltage at receptacles may damage tools
and other equipment.
1 Charge Voltage Switch
Place switch in position matching voltage of
battery being charged.
.Before connecting charging cables, place
Charge Voltage switch in position match-
ing voltage of battery being charged.
2 Battery Charging Switch
Place switch in On position to turn on charging
current. Place switch in Off position to turn off
charging current.
3 Weld Process Switch
!Place switch in Charge position before
connecting charging cables and start-
ing engine.
Use switch to select weld or battery charge
output (see table in Section 8-2).
4 Coarse Range Switch
5 Fine Control
Use Coarse Range switch and Fine Control to
set charge current.
!Do not change Coarse Range or Weld
Process switch position while welding
or battery charging.
.Charging current automatically stops
when terminal voltage is 15 to 25 percent
above required battery voltage.
1
3
5
4
2
228 649-A

8-2. Determining Battery Charging Current

1 Battery Charging Current Chart
Find battery cold crank amp (CCA) rating on
battery. Use CCA rating on chart to find charge
current setting for battery.
EXAMPLE: If battery CCA rating is 500, charg-
ing current from chart is 100 amperes.
Do not exceed charging current found on
chart. For longer battery life, use lowest
charge rate possible.
1
0
50
100
150
200
250
300
350
400
0500 1000 1500 2000
BATTERY CHARGING CURRENT (AMPS)
BATTERY COLD CRANK AMP RATING (CCA) 142 975-B