You are talking about the wrong caps. These are no supercaps! A supercap starts at 500F and goes up to 600F, 700F is under development.
Really? coz i thought the supercap are anything with the Farad range. I mean 1F to as high as 500F or greater. Even 0.1F I thought was considered a supercap. I got mine from cooperbussman and i guess they'll disagree with what you said as well. They have a wide range of capacitors in there all are considered supercap.