Hi Michael,
There is a lot of conflicting info about using lithium cells.
The arguments for and against using a BMS (and what a BMS should be designed to do)are pretty well explained here:
http://www.diyelectriccar.com/forums/showthread.php/bms-not-bms-53768.html
Yeah, it's a lot to wade through.
For what it's worth, I installed a BMS in my system, and it works great, but with I'm not sure it's really necessary in my application.
-Tom
--- In electricboats@yahoogroups.com, Michael Mccomb <mccomb.michael@...> wrote:
>
> Hello all,
>
> A new question. I am interested in a 48v 200ah LiFePO4 battery (bank) and BMS but I am very fuzzy on exactly how the BMS functions. I know that there is both a maximum charge rate and a maximum discharge rate that should not be exceeded with the battery pack. I assume that the BMS regulates and prevents such problematic usage of the battery pack.
>
> Can someone tell me if there is a required min or max to the voltage and amperage fed to a BMS for charging purposes. I assume that the BMS can regulate discharge and charge at the same time and that in effect it is only the net difference between the two functions that can adversely impact the battery.
>
> I'd love to be able to feed the BMS 48v (or 52v or whatever) and 50amps and then have the BMS completely manage the pack. Does anyone think this completely feasible?
>
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