I'm running supercapacitors only on my bike. 6x 400 farad capacitors wired in series. The generator is capable of maintaining 12v at idle, so I haven't had any electrical problems. If I was stuck in traffic for a long time, I might not have enough juice to run the cooling fans for very long, although I haven't run into this scenario yet. The weight is about 1 pound.
I also have a 4.2Ah LiFePo4 battery (4s, 1p) from Hobbyking. Haven't used it on my bike because I'm so happy with how it's going with just the capacitors.
I'll build a hybrid supercap/LiFePo4 battery to replace a car battery once one of them dies.
If you have any interest in the LiFePo4 battery I purchased, or the supercapacitor I'm using, visit
this thread.
Quote:
Originally Posted by PaulB2
Someone please explain the jargon to me. What is "4s" and "4p"? Are these cells the same size as AA's? How do you connect them together?
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4s means 4 cells in series, and 4p means 4 of the 4s batteries wired in parallel, for a total of 16 individual cells.
4 of the 3.3v cells need to be wired in series to raise the battery voltage to 13.2v, which is about what a standard lead-acid battery is.
To get enough amperage to run the starter, 4 sets of the 4 series cells are wired in parallel.
The cells are larger than AA. Cells are generally soldered or spot welded together.