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AIMS Power 4000 Watt Pure Sine Inverter Charger - 12 VDC to 120 VAC

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Original Price $1,454.00
Current Price $1,284.00

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If you are looking for a 4000-watt pure sine inverter/charger that saves you money, time and hassles, look no further. This 4000-Watt Low-Frequency AIMS Power Inverter Charger is three products in one.


  1. Our 4000-watt pure sine wave inverter transforms DC (direct current) power stored by batteries into AC (alternating current) electricity you can use to power tools and appliances.
  2. A built-in 40-amp automatic transfer switch lets the product automatically switch from using a battery bank to shore power. This provides protection in the event of a power outage. The switch will automatically detect the outage and redirect power from your backup battery bank, giving you a smooth, seamless transition for your electrical appliances and equipment. With this 4000-watt inverter, pure sine power can run even sensitive electronic equipment and gear efficiently and effectively.
  3. This inverter also has a built-in 100 amp battery charger that can use AC power, from the grid or from a fuel-powered generator. It can be used to recharge a battery bank as well. The battery-type selector on the top of the unit lets you adjust the voltage provided to the bank.


This product makes a great backup to keep everything running during electrical outages caused by storms or other adverse conditions. In the event of a power outage, you can use this inverter combined with a battery bank to run a few lights, a refrigerator and perhaps a few other necessities.

The most popular feature of this unit is the direct connect terminal block, which allows a 300 percent surge capacity for up to 20 seconds. When using the terminal block, this inverter peaks at 12000 watts with the power to run many tools and appliances with a startup surges, such as a refrigerators, freezers, microwaves and blow dryers.

Use this product for renewable solar, off-grid home and business back up power, mobile and emergency backup power applications anywhere that uses 110 or 120 volts of alternating current. The inverter accepts 12 volts DC, which makes it great for vehicle upfitting as well as boat and RV applications that use a 12 volt battery system.  The inverter outputs 120 volts AC.

The marine-coated or conformal-coated boards also make this inverter great for mobile applications, as it protects the product from dust or water vapor that may be present in the air.

A low frequency label has been given to this inverter because of the lowered level of total harmonic distortion (THD) produced during the DC to AC inversion process. This allows for a cleaner transfer of energy, which increases efficiency, and it also provides a quieter performance.

This inverter will also run powerful tools like most electric chainsaws, portable grinders, shop vacs, and more.

This 4000 watt inverter charger produces a pure sine wave, which some appliances require for use. So it can run laser jet printers, computers, televisions, CPAP machines and other medical equipment.

During a big storm that knocks out electricity, a battery-bank and power inverter running a sump pump could be the difference that saves a home from flooding. The power to run a heater could save someone thousands of dollars by keeping plumbing pipes from freezing.

Also great for emergency backup power applications is the automatic transfer switch on this unit, which keeps the power supply uninterrupted in the event of an outage. With the inverter hooked up to shore power, it will detect the loss of electricity and start pulling energy from a connected battery bank instead to keep the power supply constant.

Other popular applications for this inverter include powering lights and other appliances in an off-grid cabin, providing electricity for a mobile business or mobile office, and running camping equipment.


  • 4000 watt low frequency inverter
  • 12000 watt surge for 20 seconds 300% surge capability
  • Battery priority selector
  • AC direct connect terminal bock for hardwire
  • Marine coated and protected
  • Multi stage smart charger 100 Amp
  • Charges lithium LiFePO4, GEL, AGM and lead batteries. We recommend to check battery charging specifications for all batteries.
  • Remote panel available
  • Auto frequency
  • 10msec typical transfer time
  • Selectable 25W power save mode (hibernation)
  • 7 battery type settings for charger
  • Automatic transfer switch

    Inverter Output Specifications:

    • Continuous Output Power: 4000 Watts
    • Surge Rating: 12000 Watts (20 Seconds)
    • Output Waveform: Pure Sine/Same as input (Bypass Mode)
    • Nominal Efficiency: >88% (Peak)
    • Line Mode Efficiency: >95%
    • Output Frequency: 50Hz +/- 0.3Hz / 60Hz +/- 0.3Hz
    • Typical Transfer Time: 10ms (Max)
    • THD: < 10% DC
    • Ambient Operating Temperature: 14°F to 122°F (-10°C to 50°C)

    Input Specifications

    • Nominal Input Voltage: 12.0Vdc
    • Minimum Start Voltage: 10.0Vdc
    • Low Battery Alarm: 10.5Vdc-11.0Vdc
    • Low Battery Trip: 10.0Vdc-10.5Vdc
    • High Voltage Shutdown: 16.0Vdc
    • Low Battery Voltage Restart: 13.3Vdc
    • Idle Consumption: <3.47 amps DC
    • Power Saver Mode Idle Consumption: <0.53 amps DC

    Charger Specifications

    • Output voltage: depends on battery type
    • Charger rate: 115A
    • Over charge protection shutdown 15.7V
    • Selectable charge setting based on battery type
    • Adjustable charge current: off-20%-100%
    • Four stage smart charger

    Transfer Switch Specifications

    • 40 amp automatic transfer switch
    • 10 ms (max)


    • Unit Weight: 64 lbs.
    • Unit Size L x W x H: 23.5 x 8.75 x 7.10 inches
    • Shipping Weight: 75 lbs.
    • Shipping L x W x H 30.5 x 14.25 x 13.75inches

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