
Hybrid Ultra
855-350-050_Rev2.0_Instruction Manual
Page
48
of 84
Rate:
Set the discharge "RATE" (in hours) as specified by the battery
manufacturer to determine the battery capacity. Normally the 10- or 20-
hr rate is used. The system will use this information to help estimate the
Battery State of Charge, and remaining battery capacity when in use.
The default setting is 10 hr.
NOTE: Connecting batteries in parallel will increase the total Ah capacity,
while connecting batteries in series will increase the voltage with no
change to the Ah capacity.
Output Voltage Control (only available on lead-acid batteries)
Temperature Coefficients / Cell:
Set the battery voltage Temperature
Coefficient / Cell to optimize the automatic control of the lead-acid battery
charging voltage, to keep the battery in a good state of health. This
setting is only available if the system is configured for use with a lead-
acid type battery.
Adjust this setting to match the battery manufacturer’s recommended
compensation value in mV/°C per cell. This value will typically be −4
mV/°C for a flooded lead-acid battery (i.e., will compensate output
voltage −24 mV/°C for a 6 cell 12 V battery) to help ensure the battery is
fully charged in cold locations, and is not overcharged when warm. The
numbers in the drop-down field are absolute values. The default setting
is 0 mV/°C.
NOTE: The system must have the battery temperature sensor (ICT-TMP)
installed on the battery for this setting to have an effect (default
setting is 0 mV, assumes 25°C operation).
Battery Charge Current Limit
Charge Current Limit:
Set the maximum current that the unit may
provide while still allowing the full rated current to be drawn from the main
output. This setting should be set to the value recommended by the
battery manufacturer. The default setting is 150 amps.
Equalize Charge (only available on Lead-acid Batteries)
Set up manual or automatic equalize charge cycles for flooded lead-acid
batteries. This setting is only available if the system is configured for use
with a lead-acid type battery.
The connected load devices should continue to run normally while the
equalization charge is running.
The unit’s data log (see Section 4.8.1) will record the completion of the
equalization charge.