Saturday at home, installing an inverter

[ians]

Be very careful of firmaware upgrades for these inverters.

[Jaws]

I toyed with the idea of replacing the batteries with lithium ion but the price is still somewhat prohibitive at around R30K for decent batteries with a good built-in management system. I'm getting quoted just under R2K for a 235AH 6V deep cycle gel battery which works out to just over R9K for the set.

Why R30k of lithium ?

The lead acid batteries as a set will give you a rating of 5.6 kWh. If you want them to last 5 years again you will set the DOD to 50 % so lets say 2.8 kWh @ R9k , you will probably get R1k back for the old batteries at the scarp yard so R8k total

For a 10 year period, you will spend R17k on batteries

2.5 kWh Pylontech are now R13k and they will last longer than 10 years........