Auto Charge Dual

Product Code: 091-145-12


  • 20A, 12V charge rating
  • Automatically charges dual battery banks utilizing independent sense circuits that control voltage and current to each battery, thus parasitic loads on one battery have no effect on the second
  • Charges Both the 24 Volt & the 12 Volt Batteries Independently
  • Front panel amp meter indicates total output current
  • Full amperage output is available to either battery if the adjacent bank does not require charging, thus optimizing use of available power when charging banks with differing parasitic load rates
  • Charging the 12 Volt Battery Does Not Effect the 24 Volt Battery
  • 3 year warranty

Charger, Output Amperage 20
Chargers with Remote Display Options no
Charger, Output Voltage VDC 12
Charger, Input Voltage VAC 120
Charger- Hz 50/60
International no
Charger, Low Profile Design no
Charging Profile float
Input Fuse 8 Amps, Fast Acting
Input 120 Vac, 50/60 Hz, 4.7 Amp Max
Output Fuse 20 Amps for Each Battery Output
Warranty 3 years
Weight 22 lbs
Power Indicator Indicates Input Power Applied
Output Battery 1 12 Vdc, 10 Amps
Output Battery 2 12 Vdc, 10 Amps
Battery 1 Charge Indicator 0-15 Amps
Battery 2 Charge Indicator 0-15 Amps
EV Series no

The Auto Charge Dual, 12 volt, 20 amp charger is designed for maintaining the batteries of a 24 volt vehicle that has parasitic 12 volt loads. This excess 12 volt load discharges one battery more than the other and usually overcharges one battery and undercharges the other. The Model 091-145-12, Auto Charge Dual, contains 2 separate and electrically isolated 12 volt chargers. The chargers may be connected in series and wired to the batteries as illustrated in the wiring diagram in the instruction manual. Each battery is individually sensed and charged. Thus if the lower battery requires more charge, it will continue to receive current after the upper battery has stopped charging. When the batteries are fully charged all charging stops.