fitek
1 kW
BTW, the 4Ah Tenergy cells in this thread aren't as good a deal as the 3.5Ah; the 4Ah cells are 70 cents/W-h vs 64 cents/W-h for the 3.5Ah.
Kickass on a trailer...Nil said:How about strapping these little Nicads to your bike? 122AH per cell, 23 cells.![]()
safe said:Both the NiMh have short calender and cycle life so you have the "gotcha" that you might run out of time to really use them up if you don't ride the bike frequently enough.
I remember reading an article many years ago that mentioned when storing NiCd cells for extended periods of time, the cells must be in a discharged and cooled state. Not just discharged, but shorted across its terminals as well! The article mentioned slowly discharging to nearly 0V before storing with the short (obviously).andrew said:It's important to store them with some charge. I think storing them completely discharged can possibly cause them to leak electrolyte and degrade quickly.
Sputnik said:I've read on this forum that it's common practice to first parallel Li-ion cells before stringing them together in series. Does this also hold for NiCd?
Sputnik said:I think I may change to NiMH as I cannot find any NiCd of sufficient capacity locally. I've found 13Ah NiMH F cells but may go for some 9Ah D cells. Worse case I'll have to use 4Ah C cells(Cost and space considerations).
But the site I'm looking at for cells states that NiCd has only 200 cycles as opposed to 1000 cycles for NiMH.