3 ms·
Huh, your numbers are weird. 22x980Ah of 3.2V cells would give you over 60kWh. And the price of LiFePo4 continues dropping, it is not a good deal if your cell
by ashirviskas 1y ago
Huh, your numbers are weird. 22x980Ah of 3.2V cells would give you over 60kWh.
And the price of LiFePo4 continues dropping, it is not a good deal if your cells are aboe $80 per kWh (which at 22kWh should be below $2000).
- theodric 1y agoFuck. This is what I get for posting on 3 hours of sleep. My hallucinated bullshit came out so close to actual that it looked correct enough. 3.2v nominal per cell, 305Ah capacity: .976kWh per each. Call it .98. Not 980Ah, but 0.980 kWh. .98 * 22 = 21.56kWh total pack cap. *0.6 = 12.936 kWh available before conversion losses We burn about 11kWh daily, so there's about a day in a full battery. Spring/mid summer worked well, but lately we aren't managing to store enough to get through the night, so I will probably add another 10 panels (5s2p) once I can find a grand I don't need.
- ashirviskas 1y agoI knew the numbers had to match something! Anyways, thanks for sharing. And please take some proper rest, you protect the batteries using only 60% capacity, but allow your body go below 0%. I'm pretty sure thats out of spec.