4 FAQs about Battery cabinet discharge current limit
What is limit charge current?
Limit charge current is a user-configurable maximum charge current setting. It works across the whole system, whereby Solar is prioritised first, then the Orion XS DC-DC battery charger and then the inverter/charger. This setting is available in the Settings → DVCC menu on the GX device. Particulars:
What are battery limit calculations?
The limit calculations take into account the health of the battery pack, internal resistance, battery temperature, and also enforce the maximum pre-set limits in the programmable battery profile for current draw at various temperatures. Values can be expressed in amps or kilowatts for automotive applications.
What is the maximum discharge rate of a 5AH NMC cell?
These numbers are quite typical of a 5Ah NMC cell. Peak discharge is around 10C. However, there are other factors that determine the maximum discharge rate. The cell will be designed to deliver a maximum current versus time. This will be dependent on: Comparing power versus energy cells we see there are some fundamental differences.
What happens if you don't have a reliable battery limit?
Failure to have reliable limits can allow the main control computer to draw too much current from the battery, causing the limits to suddenly dive. In order to respect the new limit, the main drive computer would be forced to reduce current, leading to a jerky or possibly dangerous driving experience.