Supercapacitors / Ultracapacitors 1F 5.5volts Radial Super Cap (1 piece)

I wish the internal resistance was listed in the description of this product. I wanted it to backup a 5v, 4A load for 30mS during switching. Failed miserably. I tested the short circuit current of this capacitor to be about 0.12A at 5v. That means the internal resistance is about 40 ohms. That's a significant number in an R/C/L circuit to not mention.