Ideas needed for 12v systems if I do 24v
I want to do a 24 volt system so I can use the Magnum MSH4024M Hybrid inverter instead of the MSH3012M. The question is how to power the existing 12 volt stuff. 1) Use an MPPT solar controller to k...
Forum Discussion
Hi Jeff,
Realistically you are not going to run an air conditioner on that size and voltage battery bank for long (perhaps less than 1 hour to 50% state of charge). If using the bank with a Victron or Magnum inverter only to provide start up surge--then it will work.
I'd favor the 24 volt--but remember each cell has to provide the full amperage of the string. That will be in the 60 amp range for six volt jars--or twice what is recommended. Using 12 volt jars (4) will drop that to 30 amps per cell.
Using four 6 volt for a 12 volt system bumps the amps per cell up to 120. The battery bank will not be happy.
If you have room for six 2 volt agm units you would have a much better chance of powering high draw items for long periods of time.
A cheaper (and better) solution may be to add a larger "hard start" capacitor for the air conditioner.
If you plan on running air conditioning for long periods of time, the cheapest thing you can do is find an inexpensive campground.
Realistically you are not going to run an air conditioner on that size and voltage battery bank for long (perhaps less than 1 hour to 50% state of charge). If using the bank with a Victron or Magnum inverter only to provide start up surge--then it will work.
I'd favor the 24 volt--but remember each cell has to provide the full amperage of the string. That will be in the 60 amp range for six volt jars--or twice what is recommended. Using 12 volt jars (4) will drop that to 30 amps per cell.
Using four 6 volt for a 12 volt system bumps the amps per cell up to 120. The battery bank will not be happy.
If you have room for six 2 volt agm units you would have a much better chance of powering high draw items for long periods of time.
A cheaper (and better) solution may be to add a larger "hard start" capacitor for the air conditioner.
If you plan on running air conditioning for long periods of time, the cheapest thing you can do is find an inexpensive campground.
Unyalli wrote:
I will have 4 GC2's either in series for 24 volts or two parallel strings of two ea in series for 12 volts.
To start I'll have a realistic 500 watts of solar and my little Champion 2000i inverter generator. I can tell the MSH to only draw 1200-1400 watts from the generator so I don't ever overload it. I'll have to experiment to see how much this will be. I'm certain I'll have to add more solar and that will come after some real life use of the existing stuff.
Jeff
