Hi,
I'm charging the 1st pack and I do wonder does this still look ok to you?
I aligned the cells as best as I can do. The difference between the sides is 0.5mm max.
But the cells aren't perfectly aligned (about 50% charge).
Is this something I should be concerned with? Looks like a very...
Good idea. I reckon it will be just a few N⋅m (single digit ft⋅lb) fortunately I've bought a very small torque wrench for stuff like battery terminals and fuse terminals so I can dial that down pretty accurately.
It'll take some time tho. Should've bought more powerful battery tester. That...
Hi,
for my sanity sake please do help me confirm the correct order of actions for my packs.
It's 3 packs of 16 cells each, on custom made stainless steel rack, shelves made of Cetris (essentially sawdust and concrete), end plates made from 15mm (1/2 inch-ish) Pertinax (FR-2? in the US?) with...
I have separate 16S banks connected in parallel. It's single phase. It was more cost effective to rewire my stuff into single phase (or simply get a VFD) than going thought the trouble of 3 phase setup (and still having to deal with spikes from motor starting up).
Plus I'm a BIG advocate of...
I'm at like 80-90kWh with packs of 280Ah EVE cells from Amy and I'm going the 48V route if only because it's an extremely common and still safe voltage range.
Yes, people do build these. Yes it works. It opens a whole can of worms tho and I'm not sure it's actually that much cheaper than 3 inverters connected together.
It's been some time since I've stumbled upon that project while looking for a way to add another battery pack to my MIEV. Unfortunately I didn't save it. Should be pretty easy thing to google tho.
There are open hardware BMS that can be used with those designed specifically for the MIEV. Also there is A LOT of info for those MIEV packs (Outlander packs in this case).
My concept is specifically designed for like 1-2 sec transfer times.
It's not really for a fridge or anything. I've had in mind my EV charger, the battery bank chargers and the water heaters I have.
All devices that aren't very transfer time sensitive.