AIMS AC Converter / Battery Charger 12V & 24V Smart Charger 75 Amps – Large Charging Capacity Listed to UL 458/CSA

$263.00 $229.00

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Ideal for applications requiring different methods of battery charging, the AIMS AC 12V and 24V Converter/Battery Charger from the Inverter Store is suitable for many applications and battery technologies. This converter charges batteries including open lead acid, AGM, gel and LiFeP04. It’s particularly useful with generators and shore power.

The flexibility of this unit makes it practical for virtually any application. Its reliable high-frequency structure accepts a wide range of input voltages, from 70VAC to 145VAC, to handle unstable inputs. This charger automatically detects 12VDC or 24VDC battery banks for easy use. Its large, 75-amp charging capacity gets the job done fast. This is a great unit for RVs, boats, camping and many other purposes.

These units have also been tested for safety and are ETL certified to UL 458 standards and CSA certified to CSA 22.2.


  • Large charging capacity design (75 Amp for 12Vdc; 37.5 Amp for 24Vdc) charges a 100 amp hour battery in under an hour up to 90% charge
  • Power supply up to 75 amps at 12Vdc or 37.5 amps at 24Vdc
  • Three stage smart charger with variable charging voltage algorithm for maximizing  battery life (bulk, absorb and float)
  • 4 pre-programmed charging algorithms using the dip switches for the most common charging profiles
  • Charges lead acid, AGM, GEL and LiFPO4 batteries
  • Adjustable charge current control dial to safely charge smaller battery (s)
  • Wide input voltage range, 70Vac to 145Vac for unstable inputs
  • Reverse polarity, over voltage, under voltage, over temperature, short circuit  protections
  • High AC to DC converting efficiency design  >80%
  • Smart fan, always on, for maximizing the performance of the charger
  • Includes battery temperature sensor port to help maintain the life of the battery(s) (battery temperature sensor not included)
  • AC input cord – 4ft
  • Listed to UL 458 and CSA 22.2 NO. 107.1
  • 2 Year warranty


Battery Charger – 75 Amps for 12V and 24V

Input Voltage 96-145VAC full performance | 70-96VAC automatically de-rate to 50% of full load current
Frequency 40Hz to 70Hz
Nominal Input Current at Rated Output <9Aac
Voltage Measurement Accuracy ±8Vac
Frequency Measurement Accuracy ±1Hz
Nominal Voltage 12/24Vdc manual adjustable | Input voltage 96-145V
Output Current 75A for 12V mode | 37.5A for 24V mode
Low input voltage 70-96V derated at 50% of output. 37.5A for 12V  & 18.75A for 24V
Rated Output Current Manual adjustable
Current Accuracy ± 6% of full rated output current @25°C, for target currents across the range from 10% rated output (for absorption exit criteria accuracy) to the current limit setpoint.
Load Regulation 1.50%
Current Limit 75-80Amp
Dead-Battery Charging 8-14.9Vdc at 100% | 8-29.8Vdc at 100% of rated output current
Selectable Battery Type Open Lead-Acid, Gel, AGM, LiFePo4, adjustable
Parallel Outputs Maximum of two AC converter units connected in parallel
Efficiency 80%
Input Over Voltage Unit must be safe for input voltage up to 150VacRMS (and up to 215Vpeak), need not be operating. Above this level the unit may be damaged.
Reverse Battery Polarity Protection Non-destructive reverse battery polarity protection with fuses. Unit shall not sustain damage and shall meet all specifications after fuse replacement.
Input Under-voltage Unit not damaged for all input voltages from 0-300Vac. Shutdown or input current limit or other means may be applied when input voltage is out of normal operating range.
Output over voltage 12Vdc. Unit will shut down if Vcharging > Vcharging (target) + 1.0Vdc for more than 2 seconds; unit will restart when voltage <= Vcharging (target) for more than 2 seconds.
24Vdc. Unit will shut down if Vcharging > Vcharging (target) + 1.5Vdc for more than 2 seconds; unit will restart when voltage <= Vcharging (target) for more than 2 seconds.
For battery OVP the unit will restart in the same stage.
Charger over temperature protection The internal temperatures of the charger will be measured by NTC. Based on these measurements, unit will shut down if the temperature exceeds 105°C. Unit will restart when environment temperature cools to 95 °C.
BTS(Battery Temperature Sensing) The battery temperature sensor allows the charge controller to continuously adjust charge voltage / charge current based on actual battery temperature.
When the battery temperature is over 40 °C, unit will reduce the charging voltage to Float voltage, also it will reduce the Max charging current by 10% with every two degree of temperature rise.
When the battery temperature is over 50 °C, unit will shut down.
Operation temperature Operating Ambient Temperature range: -10°C to 40°C | Nominal ambient temperature: 25°C
(On the heat sink of DC-DC part, if the temperature is over 90 ℃, the Charger Current will be de-rate to 50% ; if the temperature is over 105 ℃, the Unit will be shut down.)
5~95% without condensation
Noise Unit requirements: below 50dB (A) measured at 1 m distance with fan full working.
Storage Conditions Temperature -20°C to +80°C
Cooling Fan – always on – vented
Certifications UL458,CSA22.2#107.1
Dimension (D x W x H) mm 10.25” * 6.75” * 3.25”
Unit Weight 6.5 lb
Boxed Weight 7 lb

Additional information

Weight 8 lbs

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