AIMS AC-DC Converter Battery Chargers


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Boasting versatility and a high charging capacity, the AIMS 12V and 24V AC 75-Amp Converter/Battery Charger from AIMS Power provides wide latitude to meet the demands of many applications. This unit’s broad AC input range of 70VAC to 145VAC can handle many applications and battery technologies. It automatically detects 12VDC and 24VDC battery banks. Useful with generators and shore power, it can charge batteries including open lead acid, AGM, gel and LiFeP04.

This unit’s 75-amp charging capacity gets the job done in a hurry. It can charge a 100 amp-hour battery up to a 90 percent charge in less than an hour. That makes it ideal for RVs, boats, campers and many other applications.

Reverse-polarity, over-voltage and under-voltage protections provide peace of mind along with short-circuit and over-temperature safeguards. Listed to UL 458 and CSA 22.2, this unit comes with a two-year manufacturer’s warranty.



Input Parameters
Input Voltage96-145VAC full performance
70-96VAC automatically de-rate to 50% of full load current
Frequency40Hz to 70Hz
Nominal Input Current at Rated Output<9Aac
Voltage Measurement Accuracy±8Vac
Frequency Measurement Accuracy±1Hz
Nominal Voltage12/24Vdc Aauto adjustable36/48Vdc Manual adjustable
Output Current
Output current 75A for 12V mode
Output current 37.5A for 24V mode
Output current 25A for 36V mode
Output current 18.5A for 48v mode
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 Regulation1.5%
Current Limit75-80Amp25-30Amp
Dead-Battery Charging8-14.9Vdc at 100% of rated output currentNot specified
8-29.8Vdc at 100% of rated output currentNot specified
Selectable Battery TypeOpen Lead-Acid, Gel, AGM, LiFePo4, adjustable
Parallel OutputsMaximum of two AC converter units connected in parallel
Protection Parameters
Reverse Battery Polarity ProtectionNon-destructive reverse battery polarity protection with fuses. Permanent damage will not occur and perform after fuse replacement.
Input Under-voltageNo permanent damage for 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

12/24V mode

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.
For battery OVP the unit will restart in the same stage.
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 protectionThe 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 temperatureNominal ambient temperature: 25°C

Operating Ambient Temperature range: -10°C to 40°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.)

Relative humidity5~95% without condensation
NoiseUnit requirements: below 50dB (A) measured at 1 m distance with fan full working.
Storage Conditions Temperature-20°C to +80°C
CoolingFan always on, vented
Dimension (D x W x H) mm10.25” * 6.75” * 3.25”
Unit Weight6.5 lb
Boxed Weight7 lb



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