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Charging my Yaris from my Solar Bank

2239 Views 4 Replies 3 Participants Last post by  spdas
Aloha, All. I don't see why I cannot charge my new Yaris from my electric grid. I am off the grid and run my plant totally on solar, including welding grinding cutting paint booth etc, so I can designate 12x195W panels and an Outback MX80 controller to run at 60V (up to 80amps) and the car is 240V. Seems I could break it into 4 banks of 60x4 and charge the 4 banks @ 60V each for 1-2 hours each, but How to do it?

I would want a fool-proof way and not have to manually switch each bank to be sure I do not do a +to- short.

Maybe here are a couple solutions that may work??
Some kind of master switch that can disconnect four terminals to isolate the 4 banks (that are normally in series) and simultaniously connect the four banks to the charger and all 240 at the same time?

Ideas? thanks
francis

BTW here is the Yaris I bought
http://cgi.ebay.com/ebaymotors/ws/e...0660837843&viewitem=&sspagename=STRK:MEWAX:IT
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There must be inverters capable of taking in 60VDC and putting out 240VAC to run a normal ev charger, but obviously there would be an efficiency loss there.
Well there is but I doubt it works the way you think it would. There are basically two types of inverters: GTI and Battery. He could use a battery inverter to convert 60 VDC to 240 AC. Catch is it would require a set of 60 volt batteries with 3 to 5 times the capacity of the EV batteries.

However I do know of a way to do this as I do it with my 48 volt golf cart. But there are three major hurdles. The most important hurdle is any modification to the vehicle charging system will void the warranty.

Second hurdle is a custom designed charge controller. Third the vehicle BMS

OK what you can do is connect your solar panels so that the Vmp voltage is at least 10 volts higher then the vehicle battery end voltage. So if it is 240 volts, then you will need at least 250 out of the panels.

From there you build a custom charge controller, install it on the vehicle, or heck it can even stand alone.
 
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