Attached are pictures of my battery pack. As you can see there are 16 cells.
In the second picture you can see that peeling the blue plastic reveals a metal case on each cell.
Looks like a lifepo4 cell, isn't it ?
Output voltage of the battery
during charging went from 48v (Empty Battery) to 57.5v (full battery).
Charging time is not a factor for me since I have 8 hours to charge my battery when I'm at work.
So the slower the better for the battery, right ?
A 3A charger should be enough then in my case...
I think I'm getting the picture now...
"48v" is a type of Battery. Actual voltage varies based on the energy stored in the Battery. Higher energy => Greater voltage.
I think I'll buy me the 3A 58.4v !
I'll purchase something like this one (It is 3A, has metal case and will cost me only 46$ including shipping). Note that I don't live in the US so I don't have too many choices.
http://www.ebay.com/itm/320848370289?ss ... 1438.l2649
Am I on the right track ?