LeonardF

Apologies, I was referring to plural with the "s" Point taken on the 6000 cycle cells. This lithium ion game of full of quality an credibility issues I see the specs are different on the takealot website https://www.takealot.com/hubble-s-100a-1-2kwh-12v-100ah-lifepo4-first-life-cells/PLID94061368?gad_source=1&gclid=Cj0KCQjw-_mvBhDwARIsAA-Q0Q6zIaIQtdQl_ugJyKqAShuHgALxXwWfUzx05bSRakbHyULgVqxhzuQaAsFhEALw_wcB&gclsrc=aw.ds With the two battery trolley solutions it may not be a straight forward solution as throw in two S-100A LiFePo4 batteries and a balancer. The point I was trying to make was: You are paying a premium for the 12V format vs 48V (Cost per kwh and cycles) You are going to have less than ideal charging from the inverters that usually come with these two battery systems. (It may not even work) Also take a look at the warning on the Geewiz website: https://www.geewiz.co.za/lithium-ion-batteries/209744-hubble-s-100a-12kwh-12v-100ah-lithium-ion-lifepo4-battery-first-life-cells-used-still-healthy-.html?gad_source=1&gclid=Cj0KCQjw-_mvBhDwARIsAA-Q0Q7Gb7B7hpruRL9z8P67z2imD_k99dqyYFqoY6YI5ajwVPiHNPF7DWcaAvCSEALw_wcB

I agree with the simple drop in for a 12V alarm system battery especially if the draw on the battery is relatively small. The problems I see with the two battery trolley setup and using two S-100 lithium ion batteries is that you are paying quite a premium to stay on 12/24V. The S-100s also only showing 3000 cycles compared with 6000 cycles. The popular voltage for lithium ion is 48V and you can get fairly decent 5kwh packs with 6000 cycles for just over R20k. Two S-100 plus a balancer is gong to cost R13k to 15k. So you have half the capacity (2.5kwh vs 5kwh) and half the cycles for R5k cheaper Then you are still stuck with the biggest problem which is the inverter that cannot take advantage of the fast charging. They are often charging at 10A or 15A where you would want to be charging at 50 to 100A. In stage 4 load shedding the next outage is often 4 hours away. There is a reason those S-100 only have a 2 year warranty I would think it may be better to cut your losses and get a 48V battery and a 48V inverter that can charge the battery at 50 to 100A. Unfortunately its going to be R28k plus

Thanks

I'm trying to find out what cells (i.e. CATL, EVE, BYD, etc.) are used in the Magneto models Wall mount EVO100 - 5kWh EVO200 - 10kWh EVO280 - 14kWh I assume they are LiFePO4 type

Does anybody know what cells are used in these Magneto packs? i.e. CATL, EVE, BYD, etc.

Hi Are these kits still available?

I know the op and it is a big safety issue to see two units fail like this. I have the older Axpert 5KVA from around 2015 and at the time managed to track down a service manual for my unit. I realize that this may not be exactly the same as the MK4 version but it does show a block diagram. See below Note both these inverters are not grid tie so they do not synchronize with the grid supply. In non-load shedding the unit will be in bypass mode and the safety relay will be energized (The input is switched to the output) and the inverter relay is open......although it does still need to be able to charge the battery. What if, when load shedding starts it engages inverter mode too quickly before letting the safety relay de-energize. Could this not put 220V supplied from the inverter back to the input and hence the DB? I have attached the service manual for the older model Axpert unit as it does have some for the detail circuit diagrams. axpert_mks_4-5kva_service_manual_20131104a.pdf