Charge2 and Charge4 are smart universal multi-port USB power supplies specifically designed for aviation use, delivering safe and optimal powering/charging to USB devices in the cockpit. It was a problem experienced in the air that prompted their development, details can be found here.
With the increase in the use of Portable Electronic Devices (PEDs) in the cockpit of light aircraft, for flight planning, navigation, and electronic conspicuity (such as PilotAware), the need for a safe and stable power supply for these devices is essential.
The generic plug in USB charger was never designed for aviation use, or for extended operation as a power supply. They generally generate high quantities of interference which can cause problems with radio comms (poor audio quality and constant breaking through the squelch), radio navigation errors or lowered sensitivity, and cause problems with GPS systems showing poor performance. In addition, poor regulation of the supply can damage the end user device. Charge2 and Charge4 were designed specifically for aviation use.
Both Charge2 and Charge4 can be permanently installed into EASA registered aircraft too under Issue 2 of the CS-STAN regulations, details are available here.
The units have been tested on a wide variety of devices, the list will only expand as we lay our hands on more devices for testing. All these devices charge at the same rate as if using their own native supplied charger;
Apple iPad (all generations), iPad Mini, iPhone (3, 3GS, 4, 4S, 5C, 5S, 6, 6S, 7, 8), Garmin GPS, GNS Bluetooth GPS, Samsung Smartphones & tablets, Amazon Kindle, Hudl tablets, Sony Smartphones, HTC Smartphones, Airbox Clarity GPS, Dynon D1 & D2 EFIS, PilotAware / PilotAware Classic, ASUS Nexus 7 tablets (all generations), GoPro Cameras.