dutchlincoln
100 W
- Joined
- Sep 27, 2011
- Messages
- 135
Hello,
I have a setup with 16pcs. of 90Ah Winston cells.
I intend to use the Foundingpower EBS.BMS with a bleeding balance current of 200mA.
Now, i figure the BMS does the controlling of the charge, so i want to buy a 1500W or 2000W Elcon charger in order to fill the pack.
Now, i need to specify a charging curve and voltage, but thats where it gets hard... I read somewhere that the curve doesn't matter because the BMS will regulate this. I think that's not quite true, as the BMS only bleeds off, and doesn't control any current or voltages that go into the pack.... (There IS a possibility however to regulate the max. output currnt of an Elcon charger...Not sure if this BMS does something with it?)
I find different optimal charging voltages, namelijk 3.65 volts, 3.7 volts, 3.8 volts, and even 4 volts (the latter seems too high in my opinion.)
Personally, i think that a end voltage of 3.8 volts seems okay (they are LiFeyPo4 chemistry)
I also read that the actual cell voltage isn't what you read at the clamps (possibly due to resistance loss in the connections i guess?)
Can anyone advise me a bit in order how to set the BMS and how to order the Elcon Charger?
Thanks!
I have a setup with 16pcs. of 90Ah Winston cells.
I intend to use the Foundingpower EBS.BMS with a bleeding balance current of 200mA.
Now, i figure the BMS does the controlling of the charge, so i want to buy a 1500W or 2000W Elcon charger in order to fill the pack.
Now, i need to specify a charging curve and voltage, but thats where it gets hard... I read somewhere that the curve doesn't matter because the BMS will regulate this. I think that's not quite true, as the BMS only bleeds off, and doesn't control any current or voltages that go into the pack.... (There IS a possibility however to regulate the max. output currnt of an Elcon charger...Not sure if this BMS does something with it?)
I find different optimal charging voltages, namelijk 3.65 volts, 3.7 volts, 3.8 volts, and even 4 volts (the latter seems too high in my opinion.)
Personally, i think that a end voltage of 3.8 volts seems okay (they are LiFeyPo4 chemistry)
I also read that the actual cell voltage isn't what you read at the clamps (possibly due to resistance loss in the connections i guess?)
Can anyone advise me a bit in order how to set the BMS and how to order the Elcon Charger?
Thanks!