FUNDAMENTALS
7
Charging Methods
There are two methods the DCC Pro utilises for charging an auxiliary battery.
These methods are dictated by the charging source and function very
dierently. Both methods can be utilised at the same time thus providing a
complete charging solution for your vehicle’s auxiliary battery system.
Battery to Battery Charging
This process is considered the principal charging method as it utilises the
vehicle’s main battery as the supply source. The battery to battery charging
method can be controlled by either voltage or ignition mode as outlined
previously. The DCC Pro is referred to as a three stage charger meaning there
are three stages or cycles the device progresses through to achieve optimal
charging of an auxiliary battery. There are many variants on the three stage
design on the market but essentially the basic three stage concept is all that is
required when properly implemented.
Solar to Battery Charging
The supplementary charging method is the solar to battery process. This
method utilises a standard (17-27 OCV) solar panel as the supply source.
It should be noted at this point that the solar panel is directly connected and
should be unregulated. Use of a regulator will not allow the MPPT charging
control to operate correctly and as a result will be detrimental to the charging
and maintenance of your auxiliary battery. The MPPT function provides a benet
of up to 30% greater eciency in performance than a standard (PWM) type
regulator.
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