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General Discussions / Re: ... 52 volt battery usage ..
« Last post by diverdon on November 30, 2023, 10:08:25 PM »if your cells are not well balanced, or you have a weak cell group, the BMS will cut the power when the lowest/weakest cell group drops below the preset cut off voltage, but your battery voltage would still be higher than 42V due to the remaining stronger cells being at a higher voltage.
As an example, if you had a single weak cell group that dropped to 3.0V while all the other cell groups were still at 3.7V, your battery voltage immediately before cutting out would still have been 51.1V.
As this 51.1V would have been measured while the battery was under load, the actual battery voltage would be even higher as the cell voltages will typically rise after the load had been disconnected by the BMS.
I have learned some more here from you ..Thanks ... I have been doing some more "research" and stumbled on a forum post where you helped me with this a few years ago ..
I understand it's not an exact science and there are a LOT of things to consider .. Think for now I will just stick with what has worked for a few years so far 48-49 volts and recharge to 80-90% then the change will be to Balance the battery 1 time a month ..we willsee ..thanks again for all the help ..