skai

Hi @selenium - your post on the comparison of batteries was most useful - do you perhaps have the user manual for the SunX 2.6KWH 24V battery? I am trying to ascertain whether I will be able to connect the battery to my Must inverter and what pin configuration will work between the two. Thanks in advance!

The inverter manual indicates that COM (port 12) is for RS-485 communication and the battery has 3 ports for RS485 (CAN, A and B). Does this mean I use the supplied cable to connect the inverter to the battery - and if so, to which RS485 port on the battery? Will other settings need to be changed as well? Also noteworthy is that on battery type setting 14 on the inverter - I do not have the option of PYL as indicated in some of the (google!) research I have done.

@meetygPV18-3024VPM - I am not sure what Pylontech is but will do some research on this...thank you

Thanks everyone - yes the max utility charging current is 30A. Also I did use the recommended 29V bulk charging voltage but then it charges the battery to just below 100%.

I have a Must (Axpert) 3KVA inverter and a SunX (Hubble AM-4) 2.6kw 100Ah 2400Wh lithium battery. I am not using Solar - just battery backup for loadshedding. My inverter settings as follows: 11 Maximum Charging Current 80 13 Maximum Utility Charging Current 30 14 Battery Type USE 17 Bulk Charging Voltage (C.V Voltage) 29.2 18 Floating Charging Voltage 29.0 19 Low DC Cut Off Battery Voltage Setting 24 20 Battery stop discharging voltage when grid is available 26.5 21 Battery stop charging voltage when grid is available 29 The battery takes almost 5 hours for a full charge after 4-4.5 hour loadshedding. From full, the battery drains to below 20% during a 4-4.5 hour loadshedding. From what I understand, the battery should charge to full in much less time than the almost 5 hours. Are there settings I can change to charge the battery quicker - or does the 5 hours charge time seem right/reasonable? Problem is that with stage 6 loadshedding, we often have 2 back-to-back 4.5 hour outages with only a 4 hour window to recharge the battery. Would appreciate any guidance on this matter.