FuzzyBullets

There is a level 2 BMS on these battery packs.

I upgraded to the 10Kw EHB inverter which is a high voltage inverter on the battery side. If you have 5 batteries you dc input is 250V. If you have 9 batteries your input DC voltage is 432V. That makes for a much more efficient system. P=I x V. I currently don't know of any other high voltage inverter manufacturer available in SA. Everybody thinks the 48V inverters are the best, but they are not. They are the most popular but not the most efficient. If you draw 5000W from the inverter at 48V, your current is 104 Amp. If your battery voltage is 432 V, your current is 11,5 Amp. This in return equates to less energy loss (less heat generated) and your inverter components are smaller. Its the way to go. All the electric car manufacturers battery architecture is between 400V - 800V. Makes much more sense than staying on 48V batteries.

Great quality product. Just a shame the technical after sales service is not that great, but they are trying there best to help where they can.

10 Kw Goodwe EHB inverter with 5 x Pylontech 3.55 kWh Powercube High voltage batteries. 10 x 385W JA solar panels. 5 Kw Goodwe Es inverter with 8 x Dyness 2.4 kWh Low Voltage batteries. 20 x 340W JA Solar panels. Only 10Kw inverter connected to the grid. Everything else is essential load to the 10kw inverter. The inverters are technically in series.

Its a pity that they stuck with the 48V battery system. They should have gone with HV batteries. Imagine the cable thickness between battery and inverter. 275 Amp will heat up cables leading to efficiency loss. The higher current also equates to bigger components in the inverter that can handle the current. More efficiency loss. More thermal management. Just my bit.