48v 18x 2.7v 3000F 3.038wh Nesscap Ultra-Capacitors 1,000,000 Cycles
When you want to let people know that you don't mess around, you need this ultra-capacitor module. It has 18 Nesscap 2.7v 3000F 3.038wh cells already welded in series for a 48v battery.
You could also convert these into 6s or 5s modules for car audio. Usually these capacitors are $50 each brand new but these are just $22 per cell.
They are rated for a million cycles. That is not a misprint. They are also rated for 2,270 amps. Of course you would need to have busbars thick enough to handle that. These are also discharged, capacitors can be discharged down to 0v with no issues. They are discharged so you don't kill yourself picking them up. Be careful with these. Do not wear jewelry, do not handle with sweaty hands, keep any metal away from them. There are just 4 hex bolts to loosen and the whole shell comes off.
Specs for the cells are in the photos.
Module dimensions are 14.5" x 8" x 7"
In theory, if this module had thick enough busbars, it could push 110,322 watts.