Anyone researched Telsa's 7kW battery?
http://liveoutdoor.co/5210209-15834752 Here is another link. Battery name is powerwall: https://www.teslamotors.com/POWERWALL Little expensive right now
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Really not too suitable for an RV as it is intended for grid tied and 240 volts AC. The $3000.00 cost does NOT include the inverter. It appears that the inverter is another $3000.00. By the time tax is paid we are at $1.00 per watt for this storage solution.
Further the voltage for the actual powerwall output from a dc to dc converter is between 350 and 400 volts.
It would seem to me that going for a 48 volt LI solution would be considerably cheaper. Stand alone cells are available at up to 1000 amp-hours @ 2.6 to 3.8 volts volts. 13 cells @ 400 amps would do 48 volts nicely. A good battery management system is needful given the cost per amp-hour.
Further the voltage for the actual powerwall output from a dc to dc converter is between 350 and 400 volts.
It would seem to me that going for a 48 volt LI solution would be considerably cheaper. Stand alone cells are available at up to 1000 amp-hours @ 2.6 to 3.8 volts volts. 13 cells @ 400 amps would do 48 volts nicely. A good battery management system is needful given the cost per amp-hour.
