There are lots of mppt controllers that can handle high voltage inputs, but only low voltage (typically 48V) output. I'm looking for a controller that can handle 380 VDC OUTPUT. I don't care what kind of chemistry it understands, I can turn off the controller with a contactor. It looks like I might have to build my own MPPT controller, adapting one of the open source designs. I REALLY don't want to do that. Using enphase or some other microinverter is probably a better alternative.
I'm kind of surprised that none of the off-grid manufacturers has offered this yet. It seems to me that the most practical source of batteries for off grid is salvaged Tesla Model 3/Y batteries given the rapidly rising production/sales rate. With the long warranty period for the batteries there's really no alternative market for salvaged batteries from wrecks other than perhaps a few hot rodders sticking batteries in old ICE cars. A 75KWh model 3 battery is about 10K or less on eBay. I guess most of the manufacturers would much rather sell their own power walls, and it's probably easier to market what is theoretically a plug 'n play solution, even if it's too small for practical use.
Research, pause reflect, research, repeat. I have been doing nothing but watching a listening to YouTube Video from EVTV / Jack & Team. There videos are detailed and long as they should be this is not child's play any more. The days of a Christmas light and a 9 Volt battery are over. I have been researching a power solution in my build, "to power a house". I want enough energy where I could actually provide power in cases of emergency
The Tesla 3 Battery Pack is the way to go! All the inverters, BMS, nuts and bolts are under the Penthouse. I have a Tesla 3 Battery Pack ready to be installed in the insulated living area of the
Freightliner FC-80 Chassis, a 14ft Custom Insulated Box will be mounted to the chassis. The tanks, additional engine under the tank and sweeper parts have been removed. The Tesla Battery Park will be built into the floor and it will fit beautifully within this build, thinking about removing the top plate of the battery pack so you can review from within the box. A 2' x 4' plexi-glass panel will be flush with the floor, soft lights to give it an attractive goals. (simply ideas at this time)
As you shared an initial response within this thread, you plan was to purchase the
EVTV Model 3 Standalone Controller for your Tesla Model 3 batteries.
I will have about 1200 Watts of solar on the top of this build and have been asking myself similar questions, how do I charge the Tesla Model 3 battery via a Solar Array? If I plug into shore power, how do I charge the battery via 240 Volts?
During this video the
following solution seems to appear. I still have questions.
www.ponostyle.com
acking size:590*440*320mm
