Auto Charge 12 HO

Product Code: 091-170-12


  • 20A, 12V charge rating
  • Automatic operation regulates output to a single battery bank
  • A patented built in sense circuit, checks battery voltage 120 times per second, to compensate for voltage drop in charging wires providing quick recharge, with no overcharge
  • Front panel amp meter indicates output current. Optional vehicle side mount indicator
  • Designed for rigors of emergency vehicle use; heavy duty aluminum case with protective front panel plate and wire strain relief
  • 3 year warranty
Charger with Battery Bank Single
Charger, Output Amperage 20
Battery Saver Only No
Chargers With Parasitic Load Compensation No
Charger with Remote Display included Yes
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, 2.5 Amps Max
Output 12 Vdc, 20 Amps
Output Fuse 40 Amps
Warranty 3 Years
Weight 19 lbs
Charge Indicator 0-25 Amps
EV Series No

Auto Charge 12 HO, 6 Volts, 20 Amps - 091-170-6

Auto Charge 12 HO, 24 Volts, 12 Amps - 091-170-24

Auto Charge 12 HO, 32 Volts, 10 Amps - 091-170-32

Auto Charge 12 HO, 36 Volts, 8 Amps - 091-170-36

Auto Charge 12 HO, 48 Volts, 6 Amps - 091-170-48

The Auto Charge 12 HO, Model 091-170, is a high output fully automatic battery charger for vehicles with a single battery system. A patented "Sample & Hold" circuit is utilized to detect the actual battery voltage. This eliminates the error due to the current flowing in the charging wires and assures that the battery is charged to the precise float voltage. A current limiter prevents overloading the charger when charging a deeply discharged battery or driving large parasitic loads. The charger is ruggedly constructed to assure reliable operation when mounted in a vehicle.