May 15, 20233 yr Good day I have read in a number of posts here that Sunsynk batteries are 0.5c. From the attached screenshot Sunsnyk claims that their batteries are 1c rated. am I missing something?
May 15, 20233 yr My understanding is that the 5.12kWh battery marketed in SA as sunsynk was badge engineered by a local distributor, and was 0.5C, but the battery you show here is genuine sunsynk and is 1C.
May 15, 20233 yr 41 minutes ago, Bobster. said: 5.12kWh battery marketed in SA The SunSynk 5.12 IP65 (outdoor housing) battery is also 1C. Perhaps the issue relates more to a previous batteries with CATL cells as opposed to the more recent ones (mid/late 2022 on?) with BYD cells. Details are at best sketchy on the SunSynk website. And the two cell types are apparently not compatible. 5.32 and some 5.12 (REPT and BYD cells respectively) are.
May 15, 20233 yr Author 14 minutes ago, Kalahari Cruiser said: The SunSynk 5.12 IP65 (outdoor housing) battery is also 1C. Perhaps the issue relates more to a previous batteries with CATL cells as opposed to the more recent ones (mid/late 2022 on?) with BYD cells. Details are at best sketchy on the SunSynk website. And the two cell types are apparently not compatible. 5.32 and some 5.12 (REPT and BYD cells respectively) are. I think you are right that they don't provide enough information because checking their check sheet further, I realised there is a nominal of 50A which is 0.5c, and a max discharge of 100A or 1C but there is no explanation on the conditions affecting whether max discharge kicks in or not, unless I am misunderstanding something
May 15, 20233 yr 40 minutes ago, Gee91 said: I think you are right that they don't provide enough information because checking their check sheet further, I realised there is a nominal of 50A which is 0.5c, and a max discharge of 100A or 1C but there is no explanation on the conditions affecting whether max discharge kicks in or not, unless I am misunderstanding something Pylontech batteries are rated the same way, but the BMS always reports the max discharge current at 0.5C - so most inverters will never go over this value.
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