Steca controller uses an advanced control algorithm that sets
new standards for solar charge technology. The state-of-charge
algorithm combines battery temperature, battery voltage, and
load discharge rate to determine the true battery SOC. The
controller’s memory of discharge patterns enables the controller
to know the degree of battery sulfation. This allows even
greater accuracy towards determining true battery SOC. The
self-learning controller automatically adjusts for the capacity
and age of the battery. The resultant battery SOC is displayed
within a 10% accuracy range. The patented hybrid regulator
design combines both series and shunt technology for nominal
power consumption. Maximum wire gauge for terminal: 4 AWG. The
Tarom features adjustable set points that are stored in the
controller's memory. Available Tarom options are an external
data logger, external shunts for measuring current and a remote
temperature sensor. Other options include control modules that
load shed or PV shed based on the battery SOC that is
communicated with the controller over a DC databus.
The main function of a
charge controller is to prevent over charging the batteries, as well as
keeping electrical storage in the batteries from discharging to the
solar modules at night.
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Credit Pictures provided by PIX along with DOE/NREL
