This is a giant. 108 individual cells, with a capacity averaging 2500 mAh per cell, in a 3s36p configuration. That's 90,000 mAh at 11.1v nominal. 999,000 Wh, by the numbers.
Yeah, that's what one KW of electricity looks like, in a package you can hold.
Here's a shot with the 2 previous iterations:
Here's the smallest of the 3 before the cardboard and duct tape. Was made from 18650 cells with mAh ranges from 1400 to 1900. Is a 3s8p configuration. The tabbing was welded onto the cells with the spot welder I made previously.
This is the mid-sized battery, minus the c&d. Was made from cells ranging from 1900 to 2400, IIRC. It's also 3s, this time 10p.
Once I have the time to devote, I'll do a complete charge discharge cycle. We'll see what the meter says. I hope it goes high enough. I have an odd feeling that it caps out at 20Ah.
We're heading off for a 5 day camping trip, and I'm hoping that this giant can keep the party rocking the entire time.
Now I need a 20A solar charging solution for it.