Miller Electric OM-4409 User Manual download pdf (Page 43)

OM-4409 Page 39

SECTION 8 − OPERATING OPTIONAL BATTERY CHARGER

8-1. Battery Charge Controls

1 Output Selector Switch

NOTICE − Do not switch under load. Stop en-

gine or set Process/Contactor switch to any

Remote position before switching.

Use switch to select weld or battery charge

output. Output automatically decreases (but

does not stop) when terminal voltage is 15 to

25 percent above required battery voltage.

 Before connecting charging cables, place

Output Selector switch in position match-

ing voltage of battery being charged.

When done charging, stop engine or set Pro-

cess/Contactor switch to any Remote On/Off

Switch Required position. Move Output Selec-

tor switch to AC Weld or DC Weld position.

803 231-A / 210 149-B

1

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 set-

ting for battery.

EXAMPLE: If battery CCA rating is

500, charging 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

0

500 1000 1500 2000

BATTERY CHARGING CURRENT (AMPS)

BATTERY COLD CRANK AMP RATING (CCA)

142 975-B

1 ... 42 43 44 ... 102

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