Set Battery Temperature Compensation; Set Battery Capacity - NewMar Commander II Series Manual

11.1.3 Set Battery Temperature Compensation

Toggle temperature compensation On.
EM4x Web UI page: Battery>Battery Settings
You must consult the battery manufacturer's data to obtain the correct Slope setting. Note that in many
Hybrid applications where the battery is constantly being cycled, having temperature compensation enabled
may not be necessary as the voltage on the battery is constantly changing anyway.
EM4x Web UI page: Battery>Battery Settings
Example:
Site Settings:
If you choose not to enable Temperature Compensation, then set the Rectifier Float Voltage to that required
by the battery manufacturer for the average long-term temperature you anticipate your system to operate at.

11.1.4 Set Battery Capacity

Consult the battery manufacturer's data for correct battery capacity settings.
For the EM4x to set the correct Battery Current Limit current, it is essential that this is filled out correctly.
These figures are also used for estimating the Battery Time Remaining during a discharge.
For Telecom applications, the 10-hour rate is usually the name-plate rating of the battery. However, once
again, check the battery manufacturer's data sheets as some manufacturers state the 20-hour rate (which is
usually a little more "optimistic").
The second rate is required specifically for the time-remaining algorithm. A 4-hour rate is usually a good one
to use. This information is available from the battery manufacturer's data sheet.
The Battery SoC adjust can be used at the time of installation (or for testing purposes) in case the installed
battery is not initially fully charged. If you think the battery is only 80% charged, then simply enter that value.
The value displayed here will correct itself once the battery has been on charge for some time or gone
through a few charge/discharge cycles.
Battery Recharge Efficiency considers the ohmic and any other losses in the battery charge/discharge cycle.
The effect is that more energy (Ah) needs to be put back into the battery than was taken out. With the
efficiency set to 96%, then 4% more Ah is needed to be returned to the battery before the EM4x will register
that the battery is at 100% SoC.
The Battery Discharge Threshold is a buffer to prevent false triggering of discharge notification and is usually
related to the size of the battery shunt. A larger shunt requires a larger discharge threshold.
NewMar Power System Manual
Model: COMMANDER II AND COMMANDER II+
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