Li batteries at 48vdc
After much deliberation and questions, I'll likely be purchasing the 48v Lithium battery pack instead of 4-12v. I liked the idea of 12v batteries for weight and ease of handling, but the possible cel...
Forum Discussion
BFL13 wrote:
Where does the 55v for 48v come from?
The PD 9100L 12v does 14.6v, so that is 3.65 per cell and the 24v job does 28.55v or like 3.57 per cell . 55v on a 48 would be like 3.44 per cell
Full resting on a cell is 3.2 for 12.8v. While charging the balancer cuts off the charger if any cell hits 3.9v until it bleeds off and charging can resume.
If the charger is at 14.6 and one cell hits 3.9, the other three cells would average 3.57.
It looks like you would use a lower Vabs for a single 48v battery than for the individual 12v batts in a four batt series.
Glad to see you get it. when it comes to higher then 12 volts it becomes harder to keep cells balanced. The longer the voltages stay in the upper knee the shorter the life will be. and if the cell gets to 3.9 volts real damage will occur. good luck!
