Introduction
Charge
2
and Charge
4
are microcontroller controlled universal USB chargers to enable you to charge
devices from a low voltage DC power supply. They conform to the Battery Charging specification 1.2
(BC 1.2), Chinese telecommunications standard YD/T 1591-‐2009, and can also emulate a wide variety of
manufacturer specific chargers to ensure your device is handled correctly at its optimal charging rate.
Charge
2
and Charge
4
have been primarily designed for use in General / Light Aviation aircraft, although
it can be used anywhere where there is a suitable DC power supply such as automotive (Car, truck etc.)
and marine (canal / narrow boats, inshore craft, sailing boats etc.).
Power connection
The simplest connection is by using the supplied power lead, if you require additional leads they may be
purchased from the website.
If you make your own lead use 20 AWG (0.5mm2 cross section) wire suitable for the intended
environment and the following Molex connector part numbers;
1 x Molex bare connector, part 43645-‐0200
2 x Molex crimp pin, part 43030-‐0002
The pins should be crimped using a Molex crimp tool, part number 63819-‐0000
The polarity of the connector is +ve on the left hand side, as seen when looking at the back the unit.
Important Notes
Connect only to a DC power supply, which should be protected by a fuse or breaker rated at 5 Amps.
To prevent overheating the units should not be operated or stored in direct sunlight.
The units will become warm when in use, this is normal and should not be a cause for concern. If they
become too hot they will shutdown automatically.
Use only the original or original manufacturer approved cables when charging devices, some third party
cables are of poor quality and may cause problems when connecting your devices. Do not use any form
of “cheater” cable or adapter cable when connecting your devices, they are not required and will
interfere with the correct operation of the ports.
+ -
