New Industry Products

Delta-Q Technologies Launches A Series of 3.3kW Battery Chargers

July 06, 2021 by Gary Elinoff

The stackable chargers are packaged with an EV charging station interface and a 500 watt DC-DC converter

Members of the XV3300 series are supplied in 58.8V, 65V, and 120V versions and up to six can be stacked in parallel to deliver up to 20kW.

The XV3300. Image courtesy of Delta-Q

Delta-Q Technologies’ XV3300 is built for both non-road mobile machinery and for light electric on-road vehicles. The unit can optimally charge any nominal 48-, 80-, or 96-volt battery pack of either lithium or lead-acid chemistry. The unit is capable of 93% peak efficiency. Production of the new series will begin in the first quarter of 2022.

“The launch represents a significant product development milestone for Delta-Q,” said Steve Blaine, Co-CEO and Executive VP of Engineering & Quality. “The XV3300 answers our OEM customers’ need for on-board charging power up to 20 kW delivered in a compact, fully sealed IP67 package.  Our team also designed an included DC/DC converter for auxiliary DC loads, a VCIM (Vehicle Charge Interface Module) for simple connection to public EV charging, and the ability to stack the chargers for configurable power levels. We achieved all this in a 3.3 kW charger that is over twice as compact as our previous models.” 

The Three Series Members

The 58.8V Model

  • Adjustable over a range of 30 - 58.8 VDC and can charge 9 to 16 lithium cell in series

The 65V Model

  • Can also charge 9 to 16 lithium cell in series and is adjustable over 30 to 65 VDC

The 120V Model

  • Adjustable down to 70 VDC, and it can charge 20 to 34 lithium cells.


AC Input

XV3300 series members operate over an input range of 85 to 265 VAC at 50/60 Hz. However, output power derates down to 1200 watts for AC inputs of less than 185 VAC. The maximum input current is 16 amps, and the power factor correction is greater than 0.98


DC/DC Converter

The 500 watt DC/DC converter sources auxiliary power for accessories such as the vehicle’s air-conditioners and communication devices. This convenient addition eliminates the need for a separate external device to perform its functions.


On the input side, protections are provided against surge, undervoltage and overcurrent. Protections on the output side are included against short circuit, overload, overcurrent, overvoltage, and over temperature.



The series member communicate over an isolated CAN bus, adhering to the CAN open and SAE J1939 protocols 


Fan cooled models employ forced convection with a variable speed fan. Liquid-cooled models employ coolant that is a 50% (each) mixture of glycol and water.


Physical Considerations

The units are enclosed in an IP-67 rated aluminum die-cast package

Excluding connectors:

  • Fan cooled models measure 11.8 x 8.0 x 4.3 “ and weigh 15.4 lbs
  • Liquid cooled devices measure 11.8 x 8.0 x 3.9 “ and weigh 14.3 lbs 


Regulatory and Safety Information

Members of the series of chargers conform to the touch-safe requirements for the European electric vehicle market.

The devices also conform to: 

  • SAE J1772 (level 1 and 2)
  • IEC 61851 (mode 2 and 3)