Working since 2010 that's great. This is something totally new to me I've been living with lead acid for 20 years. I don't even know the right questions to ask. The more specific about your BMS you can be the better. like how exactly does it cut off your chargers and loads. and anything that you think is important like I said I don't even know what questions to ask. Thank you.[/QUOTE]
You will find a lot of information on the Genasun site. To be short
the BMS handle the 8cell monitors (for 24V) It checks individually every cells for V , température , balance and the full pack. The BMS controls two relay drivers . One the charge bus and one for discharge/service. Also there is an extra driver for auxilliary purpose that I dnt use.
So when the pack reachs its HV , the BMS open the charge relay, disconnecting the power sources.
Same when the pack reachs its LV , the discharge relay is openned cutting off the supply.
Both LV and HV are factory tuned for our cells. I have in mind 28V for HV and 25.4 for LV.
This is a true Bang Bang approach.
As the Victron monitors offers also an LV and HV alarm and relay drivers you set as you need. And all of them with hysteresis; This is a much more sophisticated. For the time bieng I just use the HV relay to cut the alternator field (I my mind 27.9V). I could also control in a same way the shore charger
I have now only one solar
pannel with a MPPT
directly connected to one bank. I let the BMS handle the HV directly.
The alternator is a leece neville heavy duty w/o fancy regulation. Just trimmed to 28V. Delivering 65Amp non stop but badly hot (105C). It feed the 2banks via a FET isolator from Victron.
In parralel I have wired the shore charger
; It is also victron Skilla 50Amp.
I have removed again all fancy regulation and set is as a "constant V source" trimmed to 28V. And I let the 50Amp current
clamp regulates the current flow.
From my own mistake, if you have several banks, dnt put 2 banks in parrallel as several selectors allow the "1 + 2". I have blown up cables
on my prototype connecting 2 unbalanced bank.
Also I dislike
the self contained pack (cells and electronic), looking as a "standart" lead battery
If there is any software
problem in the BMS ect.. you will be just trap. I fell much more confortable to have access to the cells.
Otherwise I feel this kind of battery to be much more simple to use compared to lead acid.