If I have 3 supercaps, 2.7v 400F, and I charge them in parallel I will have 1200F at 2.7v, which is 4,374 joules.

If I have 3 supercaps, 2.7v 400F, and I charge them in series I will have 133.33F at 8.1v, which is 4,374 joules.

1) does it take more input power to charge caps in series than the same caps in parallel?

2) If I now swap the 3 caps that were charged in parallel TO a series configuration, do I loose joules?

3) If I loose joules WHERE do these joules go?