SunSynk SUN-BATT-5.32 v SUN-BATT-5.12
I currently have one SUN-BATT-5.12 upright wall-mount battery (installed on 5/12/22) working with my solar panels and SynSynk inverter (installed on 28/9/22) and am thinking about having another SunSynk "5 kWh" upright wall-mount battery installed next to it.
I understand that as my existing battery is a “REPT” battery I can either have another upright wall-mount SUN-BATT-5.12 fitted or a SUN-BATT-5.32.
So, aside from the obvious slightly larger capacity of the 5.32 kWh, which is the "better" battery overall, eg. in terms of manufacturer, age/modernity, technology, specification/performance, longevity, eg. charge/discharge cycles, etc. the 5.12 kWh or the 5.32 kWh?
Is the 5.32 kWh essentially the same as the 5.12 kWh, but with a slightly larger capacity (in which case, all other things being equal, it would be obvious to go with the larger capacity 5.32 kWh)?
Or are there shortfalls of the 5.32 kWh compared to the 5.12 kWh (which would outweigh the slightly larger capacity of the 5.32 kWh and actually mean it's better to go for the 5.12 kWh)?
After asking SunSynk if a new REPT SUN.BATT.5.32 would work with my existing BYD SUN.BATT.5.12, which is over two years and two months old, they replied; "Yes, the batteries would work as they are compatible.
Your installer may know that we would recommend putting the new battery as the master but if they require any technical support on install please advise them to contact our technical support hep line.".