"Dave Plowman (News)" wrote in message
...
In article ,
Farmer Giles wrote:
I have used them, but not for a while. From memory, the self-discharge
rate is quite high. The main benefit of supercaps is the fast rate of
charge and the high number of charge/discharge cycles.

Thought their main purpose was a very high maximum discharge current for
their size?

That’s just one of their main purposes. The other obvious
one is that they don’t have a limited life like a battery does.