I have recently upgraded 2 systems to Pylontech.

Old system comprise of

8 x 12V 100 Ah Lead Crystal

2 x HA02  balancers.

interconnecting cables.

One set is in Randburg, and the other in Pretoria.

Any offers?

 

How old are the batteries? Which make?

Any idea of typically how often and deep they were cycled?

They are Betta BC-6CNFJ-100 .

The date code on them is Z1412xxxx.

For 3 years they were hardly cycled. I can't say how deep as I didn't have any means to measure it.

For the last year they were cycled deeper, but also properly charged as per this video. Well at least till 58.4V as that is how high my Axperts go.

 

I can't give any extra info on the set in PTA.

See https://powerforum.co.za/topic/4294-lead-crystal-batteries-availble/ for another discussion on these batteries.