Section 8 − Operating Optional Battery Charger; Battery Charge Controls; Determining Battery Charging Current - Miller Electric 250 Owner's Manual

SECTION 8 − OPERATING OPTIONAL BATTERY CHARGER

8-1. Battery Charge Controls

2

8-2. Determining Battery Charging Current

400
350
300
250
200
150
100
50
0
0
BATTERY COLD CRANK AMP RATING (CCA)
1
4
3
500 1000
.
A complete Parts List is available at www.MillerWelds.com
!
!
NOTICE − D o not use generator power ac re-
5
ceptacles while using optional battery charger.
Low voltage at receptacles may damage tools
and other equipment.
1
Place switch in position matching voltage of
battery being charged.
.
2
Place switch in On position to turn on charging
current. Place switch in Off position to turn off
charging current.
3
!
Use switch to select weld or battery charge
output (see table in Section 8-2).
4
5
Use Coarse Range switch and Fine Control to
set charge current.
!
.
1
1500 2000
Have only qualified persons charge
batteries.
Do not use battery charger for jump
starting.
Charge Voltage Switch
Before connecting charging cables, place
Charge Voltage switch in position match-
ing voltage of battery being charged.
Battery Charging Switch
Weld Process Switch
Place switch in Charge position before
connecting charging cables and start-
ing engine.
Coarse Range Switch
Fine Control
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 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.
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