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  1. Old foto of current system. Before battery charger was installed.
  2. Thank you, really appreciate the feedback. Struggling to find some good advice and the little knowledge I got is more dangerous than anything else. The "experts" that installed the current system in early 2014 was clearly not that. Approached someone now in the Mpumalanga-Badplaas area to have a look and got a quote for exactly the same batteries we can get from First National for R140k, for R190k. R50k on top. No suggestions for alternatives or even questions. So the only interest is to make a quick buck. Can up it to 5 pylontechs and it will still be way below the R140k (inc VAT) tha
  3. Thanks. The Flexmax 80 charge controller got settings for absorb and float voltage. I see recommended values of absorption voltage of 52.5V and float at 51.8V for the Pylontech batteries in a another topic on the forum, and should be able to set that on the FM80. 50% DOD on the lead acid batteries MTE 21S only give about 2500 cycles (+- 7 years on paper). Only got about 5 years out of the previous set with 40% DOD. https://www.battery.co.za/wp-content/uploads/2017/06/M_Solar_Dec_2016_.pdf Pylontech claims 10 year warranty and giving 6000 cycles @ 80% DOD, so tempted to go with t
  4. Hi All, I would really appreciate some advice please. Currently got a 48V off-grid solar installation on a farm with: Omnipower HT-B-S8000-48 8KW Pure Sine Wave Inverter Outback FLEXmax 80 Charge Controller 24 x 2V First National solar lead-acid batteries (+-1100Ah at C10) 12 x JA Solar 335W panels (+-4KW) Problem is that the lead-acid batteries has reached its end of life and we need to replace them. Option is to replace with the same 24 x 2V First National solar lead-acid batteries (+-1020Ah at C5). Looking at R120k which seems to be very expensive.
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