charging a standard chevy volt battery with a 3kwh solar panel

mpobor said:

hi everybody..

if i have a solar system of 3000w, and a usable light time of 6 to 7 hours, am i able to charge a 2 gen chevy volt unmodified pack during this period?

i see many project with chevy volt battery re arranged in other configuration.. but in this case i'm talking about a standard chevy volt pack of 18kwh (14 usable)

if i hook up a standard chevy pack to a charger connected to this kind of solar system should i be able to charged within this light time of 6 to 7 hours?

Click to expand...

What are the specs on your solar panels - and how many do you have?

From what I have gathered from the internet, the standard Volt pack is a 355 Volt assembly, and offers 14KWh usable power. Dividing 14,000 by 360 (a nice round number) produces a current of 38.88 Amps (40 in round numbers) - which would charge your pack in one hour. Dividing that by 6
gives a value of 6.66 Amps - not far off from what you would expect from a typical 75 Watt "12 Volt" panel. . So to produce 360 Volts you would need 30 12-Volt panels connected in series. You might get away with less than that, since the open circuit voltage of typical 12 Volt panels runs around 18 or so.

Were it my project I would figure out by trial and error how many panels I would need to achieve the desired current, then connect them directly to the battery (no regulation), and charge away! I would carefully monitor the process the first few times, then put the whole shebang on a timer as appropriate. I would, of course, include a suitably sized fuse in the circuit -
in case things didn't go as expected.

Would it work? I think so. I may try a much smaller version of the idea on the 48 Volt pack I am using for my scooter project.

Dave

Cessna!82b said:

What are the specs on your solar panels - and how many do you have?

From what I have gathered from the internet, the standard Volt pack is a 355 Volt assembly, and offers 14KWh usable power. Dividing 14,000 by 360 (a nice round number) produces a current of 38.88 Amps (40 in round numbers) - which would charge your pack in one hour. Dividing that by 6
gives a value of 6.66 Amps - not far off from what you would expect from a typical 75 Watt "12 Volt" panel. . So to produce 360 Volts you would need 30 12-Volt panels connected in series. You might get away with less than that, since the open circuit voltage of typical 12 Volt panels runs around 18 or so.

Were it my project I would figure out by trial and error how many panels I would need to achieve the desired current, then connect them directly to the battery (no regulation), and charge away! I would carefully monitor the process the first few times, then put the whole shebang on a timer as appropriate. I would, of course, include a suitably sized fuse in the circuit -
in case things didn't go as expected.

Would it work? I think so. I may try a much smaller version of the idea on the 48 Volt pack I am using for my scooter project.

Dave

Click to expand...

it sound doable.... i will look more into it.

my sick brain thought to built a home solar system capable of charging a full chevy volt module during the day, while i will go around town with a car equipped with an other chevy volt battery...

at night i will come back with an almost empty battery, the "t-shape" battery and the location of the connector would make fairly easy to "slide" out the battery from the car... pretty heavy 435lbs is crazy heavy i know, but wouldn't be hard if you project an efficent way to slide out the battery,

swapping the fully solar charged battery and connect the other battery to the solar system.


in 2018 if something has not been done, can not be done... i know this so i'm very courious about interesting project but if there is nothing online.. again, can not be done..

an other idiotic project is this:

i found this on the internet this. https://www.youtube.com/watch?v=YxmShTA92Gs

i have no idea what this man will expect to charge with a 240 watt sola panel..... i 'mean i don't know how many years will be necessery to charge it... but.. i also found this:

https://www.youtube.com/watch?v=BwvgYQjCC1E

and it make me think about bonding the two ideas using this:

https://www.youtube.com/watch?v=ivSUCf3AJ54&t=340s

just simply laying 10 rolled panel obove the car while will be parked at work for 6hours on full sun... this will give me 6kw of energy... giving me free range coming back to work...
it sound so silly i know... nobody did that so there is something wrong with this idea.