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tetrasection

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  1. https://www.sustainable.co.za/black-friday-2020.html
  2. https://www.solarwaysuppliers.co.za/product-category/on-special/
  3. https://www.inverter-warehouse.co.za/collections/specials
  4. https://lithiumbatteriessa.co.za/collections/black-november
  5. Sorry for the late reply, haven't been around here for a while. 3.Yeah it might take it past 50% DOD but would you rather sit in the dark or use your batteries which still have 50% capacity left? Off-grid people cycle their batteries every single night so DOD becomes much more of an issue. Your batteries are basically just on float apart from the occasional load shedding at night which even at 80%DOD would still be considered very minimal cycling. 4. "Battery stop discharging voltage when grid is available" means it will continue to use your battery power even while grid is avai
  6. https://solaradvice.co.za/shop/solar-power/?promotion=black-friday https://sinetechstore.co.za/product-category/black-friday-2020/ https://lrgsolar.com/product-category/black-friday/
  7. Please post any Black Friday specials you find. Found these so far: https://www.livestainable.co.za/product-category/black-november/
  8. Get a small panel and pwm charge controller and use it to power a pump for a fountain/water feature or some kind of automatic drip system or a bunch of twinkle lights in the garden? Replace the battery in your PC's UPS? Use as a second battery in your car boot and install a killer subwoofer or a mini fridge?
  9. 1.)Bulk 28.4V 2.)Float 27V 3.)I would lower the low voltage cut-off to 23V which is 11.5V per battery. Once it kicks in you'll be left in the dark so there's no point in setting it any higher than this. 4.)Highest possible 5.)Depends on the inverter behaviour. If set to float voltage, will it prevent the batteries from bulk charging?
  10. Totally agree, it's very dependent on your appliance setup and guests. In my case there is no municipal water so a pump is required that pulls about 1.2kw which is the main concern. With added guests come showers, hand basin and toilet use, washing machine use, extra dishes etc so the pump is running a lot. They also bring laptops and on occasion an x-box. So my situation is a lot different to yours where you only need a bit of extra power for lighting. In your case lithium is the obvious choice. In my case I normally only use about 20% of my capacity daily so I have 80% spare c
  11. According to google Gel batteries should last about 6 years at 25% DOD. I agree, if your daily energy requirements are constant throughout the year then lithium is a no-brainer. However if you tend get visitors over holidays and need extra power for even a day or two you are pretty screwed. Hence IF you do get visitors and need extra capacity on occasion I'd say Gel batteries are still the better option (or at least more cost effective, compared to buying extra lithium batteries that will only be used a few days a year) and in 6 years time there will probably be chea
  12. Do you use the same amount of power throughout the year or do you have times of heavy usage (like family visiting etc)? For me that is the one thing that makes lithium batteries not worthwhile at the moment. As a crude example say you use 8kwh daily, you can get a 10kwh pylontech bank and drain it to 80% DOD daily but what happens when family comes around? For the same price you can get about 36kwh of gel batteries, drain them to 25% DOD daily and when the family comes over you still have well over 20kwh extra capacity to dip into.
  13. Think it's just the new generation of the Axpert style OEM products. It has the same user menu. This one looks like it's exactly the same as the Growatt except for the panel trim https://www.solarwaysuppliers.co.za/product/sacolar-5kw-high-power-450vdc-inverter-mppt-100a-48v/
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