I have been busy playing with my new set of LFP cells. These are Headway 38120 format cells. They are only 8Ah each, but can push 200A continually hence are big and heavy for their capacity. The energy density is 1/2 that of the common LFP cells. They came in a package of 48 cells in a 24V assembly for an unknown industrial application.
I don't have the need for this power (you can drain the cell in 2.5 min and charge them in 5 min), but they come in an industrial assembly that is rugged and convenient to use. In measuring the cells, I found that there was an intermittent connection in a balance lead, and had to take the assembly apart to measure each individual cell. So far, they all measure higher than 8Ah. Perhaps it's the loose connection that caused the assembly to be pulled out of service. I still need to check each of the cells out, because one weak cell can ruin the performance of the whole pack of 48 cells.
I will put everything back when I am through. Everything is bolted together, hence the disassembly is not destructive.
The $/kWh is not that good, but the intention is to use the rugged industrial assemblies as is for a solar app I am planning.
Sounds great!Out the door at 8:30 for the sea trial & survey. Surveyor was on the boat all day yesterday on the inside. So wifey and I got a couple of egg mcmuffins on the way and a couple of dock sandwiches for the survey and we had a nice 2 hour boat ride in the bay followed by the haul out and bottom inspection.
Cost 12 hundred bucks already and I don't even have a boat yet.
Found out that both toilets don't work (one more than the last survey), but everything else seemed to be in line. The boat is solid. Hull is solid, engines run good and smooth, clutches are smooth, rudders are smooth, auto pilot works good.
The most revealing thing was wifey said, for the last half hour I wasn't worried about anything. I was diggin' watching the scene and learning about piloting the boat. Twin engines and smooth clutches are a wonderful thing. Fly deck and salon deck controls are always on. Cool seeing the controls move remotely.
Going out Saturday to reserve a slip in Stockton, the game is afoot!
My daughter did this to a blackberry patch behind our garage last year. I should probably fertilize it soon.Was a cold day but went to ranch to prune wild black currant and some black currant I planted a few years ago.
I try to do all I can for the wild currant that grows along the crick. It has produced very well since I started helping it along.
Drove out to Stockton and reserved a slip for the Big Boat -