Tersius

@ibiza So it's a normal tiled roof. I take it one needs the T shaped one then? https://solar.rubiconsa.com/stainless-steel-mounting-bracket-for-tiled-roof-perpendicular-rub-trh-04.html?search=tile mount Looks like the other type is used for slate tiles if one reads the description.

Found these while searching online. https://www.acdc.co.za/collections/solar-wind-generators-street-lighting-solar-kits/sol?page=38 I'm not an installer so I've got no clue, do these products generally work together, we already have the railing and all the other fittings that was removed from the old install site, just not sure if you have to buy one brand and if there is a standard and different brands can be used together?

I'm looking for suppliers that have these or similar type brackets in stock. It sounds like there is some sort of shortage at the moment when speaking to the one or two places I have phoned. The codes are LS400540 and LS340284 and as I understand they are the lizard solar mounting products. For those with more experience, if you can recommend a supplier in Gauteng that sells these and have stock or know of an alternative product that works similarly I'd appreciate your input. Panels been sitting here and just gathering dust.

My batteries also started failing after two years, while they were punted to last 10-15 years on floating. I just hope the lithium lasts the claimed 10 years. Makes me wonder how one should maintain these deep cycle sealed battery types so that they last. Seems the only lead acid that lasts are the un-sealed ones you have to vigorously maintain and baby.

Crazy, is this for private use?

Bit the bullet and ordered the 15/11 battery from Freedomwon. Install will be next week hopefully. Works out to R6413/kW ex VAT.

So looking at the specs of the Freedomwon 15/11 batteries they are 300ah with 200A continuous and 250A max. So C rate of 0.67 I suppose which is ok. More than what my 8KVA inverter can supply anyway, installed 32A breakers on the output although the inverter can do 62A drawing from mains and batteries at the same time.

@plonkster Pylontech makes their own cells. I have also heard rumours about the BMS on the BLueNova giving problems. MLT stopped using BlueNova until it is sorted out. Not sure if it has been sorted yet.

@PurePower From where did you buy your batteries? Also how much did the casing and extra cabling cost?

I'm also seriously considering some sort of lithium solution since my small 200ah bank has some bad batteries in it and I would like to make use of the full potential of my PV array. Currently the Freedom Won 15/11 looks to be my best solution. They work out at +- R6700/kwH with the 10 year warranty. This included the cabling and the case. The power star inverter is also listed as a supported inverter and their offices are close by. The pylontech also looks quite nice and they are going for +- R6305 /kwH. They don't really need a case I suppose as they are in casing already. I like the modular design and the options that afford. The warranty is less than the freedom though. Not sure about compatability though but would probably work. I'm just not 100% sure if my setup is ready for it yet. I have the MLT Powerstar(UPS/Inverter). It supports Li battery types. My main concern is the Flexmax 80 Charge controller. Someone told me that should the li-battery isolate itself the MPPT sees the the capacitor of the inverter and you get a situation where the MPPT tries to match it's output voltage to the voltage of the capacitor and you get a runaway situation where the MPPT and inverter is damaged. Anyone heard of this sort of thing? I suppose the integrated inverters like the Axpert won't suffer this.

I have 8 100Ah Omnipower AGM batteries running in a 4S2P configuration for my 48V inverter. I suspect one or more of the batteries have been damaged or is just not balanced any longer because the voltage seems to drop much quicker under load than they use to. I now want to find the offending batteries and test them to see what is going on. What would be the steps for me to test the batteries and possibly try and re-balance them? I have access to a multimeer and a normal non-smart battery charger(Hawkins Pro 15 Battery Charger 12/10G). My problem comes in with not having access to a smart charger but only a normal battery charger as I'm not sure if I can charge a battery using it and I don't have mega bucks to spend on a smart charger.