+44 (1223) 979580 office@harkwood.co.uk Cambridge, UK
USB-PD Chargers for Light Aircraft
Interference-free USB Power Delivery. Designed specifically for continuous operation in light aircraft with either 14 V or 28 V power systems.
For 14V and 28V aircraft
Dual port, up to 45W per port
Multiple mounting options
Can charge two full-size iPads
For CoA and Permit to Fly
EASA CS-STAN
Adjustable max power output
Adjustable LED brightness
Low RF signature
12-32 V input
USB-PD R3.2 v1.0
Available directly from our online store and select resellers.
If you are a reseller and would like to stock our chargers, please get in touch.
WHY IT MATTERS IN AIRCRAFT
Generic chargers cause real problems
Generic plug-in USB chargers are not designed for use in aircraft. They typically generate significant electrical interference that degrades radio communications, affecting audio quality and squelch behaviour, and can reduce GPS and radio navigation sensitivity.
Poor voltage regulation in cheap chargers can also damage connected devices, and they often have little, or no, safety features.
Designed around aviation requirements
Our chargers are designed for use in light aircraft. They’re built for continuous operation, and a low RF signature is treated as a design constraint rather than an afterthought.
The same design principles were applied in our Charge2 and Charge4 units, which have been in cockpits since 2014.
TYPICAL USE
Navigation devices
iPads, tablets, and dedicated aviation GPS units are running continuously in flight.
Electronic conspicuity
Portable EC devices such as PilotAware.
Phones and comms
Modern phones and tablets need higher and reliable power to ensure they maintain charge when in use at high brightness levels.
USB POWER DELIVERY
USB-PD R3.2 v1.0
Compatible with modern fast-charging and high-power devices. Each port independently negotiates voltage and current with the connected device. While retaining backwards compatibility with older USB devices.
Independent port operation
Unlike some multi-port chargers, power remains uninterrupted on one port when a device is connected to or disconnected from another. Connecting a new device doesn’t affect what’s already running.
PROTECTION AND SAFETY
- Over-voltage and under-voltage protection – clean shutdown if supply falls outside safe limits
- Per-port overcurrent protection
- Over-temperature protection
- Reverse polarity protection
- Suitable for 14 V and 28 V aircraft power.
MOUNTING OPTIONS
Direct panel mount
Chargers can be directly mounted in an instrument panel. Dimensions are on the specifications page.
Circular instrument cutout adapter
Adapter plate for standard 57mm and 32mm circular instrument panel cutouts. Avoids the need for a cutout in an existing panel.
Version 2 replacement adapter
Specific adapter for replacing an existing version 2 charger unit. Reuses the existing cutout and mounting points.
INSTALLATION
Our chargers can be permanently installed. The installation process is the same for all aircraft. What differs is the regulatory paperwork depending on how your aircraft is registered.
Uniquely, the chargers have an adjustable maximum power level settable for each port. This ensures compliance with current regulatory limits or available power restrictions. If limits change in the future, the output can be changed as required.
BACKGROUND
The V3 USB-PD generation charger follows the same design principles as the Charge2 and Charge4 USB chargers, which have been in service in light aircraft cockpits since 2014. The very low interference and voltage regulation requirements haven’t changed, but the devices being charged have.
MORE DETAIL
TECHNICAL
Specifications
Full electrical specs, dimensions, panel cutout drawings, and connector details.
RESELLERS

LX Avionics Ltd
Hangar 10
Turweston Aerodrome
Brackley
Northants
NN13 5YD
+44 (0)1280 700020





