GRAYSON

It appears that the charging settings in your Ellies FBIC3000VA/24V inverter are not optimal for your 3.7kw Lithium battery, which could potentially cause damage over time. To correct this, you should consider adjusting the following: Boost Charging Voltage: Consider increasing this value to the recommended Equalized Voltage of 28.8 Volts, to ensure the battery is properly charged. Float Charge: This value should match the recommended Float Voltage of 28 Volts. If you are unable to increase the value to 28 Volts, it may be necessary to contact the manufacturer for assistance or a firmware update. Low Voltage Disconnect: This value should match the recommended Cutoff Voltage of 22.4 Volts. It's important to note that these values are specific to your particular Lithium battery and may vary from manufacturer to manufacturer. It's best to consult the battery specifications or a specialist to ensure that you are using the correct values. By properly setting the charging parameters, you can optimize the performance of your Lithium battery and prolong its lifespan.

Yes, it's possible to use a Lithium battery with your Axpert 3kVA 24V inverter system, provided that the inverter is capable of charging Lithium batteries safely. You may want to check the manual or contact the manufacturer to confirm this. As for recommendations for the Lithium battery, you may want to consider using a Lithium Iron Phosphate (LiFePO4) battery, as these are known for their safety, durability, and long cycle life. The size of the battery you'll need would depend on your specific power requirements and usage pattern, so it's best to consult a specialist for a more accurate recommendation. In South Africa, there are several suppliers of Lithium batteries, including Battery and Solar Solutions, AGM Batteries, and Energon. You may also want to check online for reviews and compare prices to find the best option for your needs.