My AGM to Lithium conversion

jaycocreek wrote:
0% state of charge or LVD..I have not taken a 100ah LFP to shutdown,I have taken a power station with LFP cylindrical cell to shut down to calibrate the screen..I have only read that taking a normal 100ah or whatever LFP battery down to BMS shut down,requires some TLC to get it back running like a charger that does that or jumping it off another 12V battery,even a car battery..I have been in the 10+ volt range and shut it down myself,checking on battery capacity..


I have no idea what the manufacturers call 0-100% and the 2-3000 cycles doing so..My last battery came with a voltage chart for it(yes we all luv the charts..LOL) but it shows 10.8 as 1%(9.5V 0%) and the recommended shut off..Do they mean let the BMS shut it down for the 0-100% or really close too?..Seems letting the BMS shut it down could be a pain..

Is this merely a hypothetical exercise (pondering the outer batt limits?), or are you in someway concerned about exceeding it’s limits and activating the LVD??…Maybe I’m confused, but IF it’s the latter (though, as with FLA’s I don’t know why one might purposefully do so??), since you already have a competent shunt-based Victron, why not just do an actual load test? This would also inform you as to your actual a/hr capacity upon disconnect, and (assuming you have an inverter…) of potential low voltage alarms…Just saying…

3 tons