These look awesome and extremely cheap when you take lifespan into consideration... On Alibaba they seem to go around 30usd a piece.

You would need a minimum string of 21 batteries to get to 48V which would give you about 2kwh. Cost for 21 batteries is approx. $630 = R9500 so about R4750.- per kwh (sure it would be a lot less if buying bulk from the manufacturer directly)

Lifespan makes up for it though, giving 25,000 cycles @ 100% DOD to reach 80% initial capacity!!!

In other words you could cycle these daily down to 0% and after 68 years you would still have 80% capacity left! That's insane!

 

Edited February 27, 20205 yr by tetrasection

Just saw on that spec sheet that the calendar life @25 degrees is 25 years... so much for my excitement over the battery that lasts for 70 years lol

Still looks like an amazing battery though and 25 years is still a flippin long time.

Edited February 27, 20205 yr by tetrasection
to finish sentence

@tetrasection  Speak to @Bain Viljoen he was planning to import some. He owns Lithiumsouthafrica.co.za