Caravans or special trailers are often equipped with their own battery. Such batteries serve the purpose of supplying power without connection to a trailer. Electrical energy is needed to power equipment such as a towing device, refrigerator, interior light, cable winch, etc. The trailer battery is charged by the trailer during driving. As soon as the engine is switched off there is a risk of uncontrolled battery discharge in the trailer.

In the past, external voltage monitors have been used to counter this discharging risk. These ensured that a charging operation was performed only after reaching a minimum voltage level and disconnected the charging line if the voltage in the trailer was too low to protect the battery.

But things have changed. Automobile manufacturers are now compelled to reduce fuel consumption as much as possible.

They have introduced energy management systems that switch off the generator as soon as the battery is sufficiently charged and switch it back on again as soon as the voltage drops.
This reduces the amount of fuel-intensive mechanical drive power needed for the generator to a minimum. Unfortunately, repeated switching on and off reduces the battery charge of the trailer to a point of uselessness.

NEW since 2017

Starting as of 2017, JAEGER automotive introduced the new generation of CFC trailer control units for CAN bus vehicles. The fully electronic voltage regulation EasyCharge is now integrated. It ensures an independent charging process without interruption during the entire ride. The advantage is an optimum charging quality of the trailer battery without conflicts of any kind with the energy management system in modern vehicles.

The existing line of products and new features in the PREMIUM range are gradually being equipped with this system. The PREMIUM product line is thus further significantly upgraded without any additional cost.