This is in an MCI Bus Conversion.
The issue I am having is with the Bus lead acid start batteries, these are two, 8D, 12 volt batteries wired in series for 24 volt.
In between uses the bus sits in a storage area with no access to power, Inactive time could be up to a couple of months, the Bus batteries slowly loose charge.
I am also building a solar system using the Electrodacus SBMS0, The house batteries will be, 24 volt, 8 302 Catl Lifepo4 cells, 1500 watts solar in 6, 250 watt panels, these will be set in 3 groups of 2 parallel panels. Each Group of Two will output an Approx. Max of 30 volts and 17 amps.
The SBMS0 does not accommodate Lead Acid Batteries.
I am thinking a possible solution is get a separate charge controller maintainer and wire one set of the Solar panels that can be switched from the SBMS0 to the separate charge controller to maintain the 8Ds while the Bus is inactive.
The current plans call for the Lifepo4 batteries and the house system to be disconnected while the Bus is Inactive and unattended, my understanding is the Lithium batteries can maintain storage much better than the Lead Acid batteries.
Does anyone have a better suggestion?
Do you have any recommendations for a long term 24 volt solar powered Lead Acid Battery maintainer?
This is one possibility.
https://hqsolarpower.com/20a-mppt-solar-charge-controller/
Peter
The issue I am having is with the Bus lead acid start batteries, these are two, 8D, 12 volt batteries wired in series for 24 volt.
In between uses the bus sits in a storage area with no access to power, Inactive time could be up to a couple of months, the Bus batteries slowly loose charge.
I am also building a solar system using the Electrodacus SBMS0, The house batteries will be, 24 volt, 8 302 Catl Lifepo4 cells, 1500 watts solar in 6, 250 watt panels, these will be set in 3 groups of 2 parallel panels. Each Group of Two will output an Approx. Max of 30 volts and 17 amps.
The SBMS0 does not accommodate Lead Acid Batteries.
I am thinking a possible solution is get a separate charge controller maintainer and wire one set of the Solar panels that can be switched from the SBMS0 to the separate charge controller to maintain the 8Ds while the Bus is inactive.
The current plans call for the Lifepo4 batteries and the house system to be disconnected while the Bus is Inactive and unattended, my understanding is the Lithium batteries can maintain storage much better than the Lead Acid batteries.
Does anyone have a better suggestion?
Do you have any recommendations for a long term 24 volt solar powered Lead Acid Battery maintainer?
This is one possibility.
https://hqsolarpower.com/20a-mppt-solar-charge-controller/
Peter