Can you solder together a usb cable to a 12v power cable ?

[stef1808]

So the idea is that in 1 car, the cigarette lighter doesn't work - nothing fits into it which I really dont understand - thought it was all 1 universal size.

Anyway, for a quick solution, was thinking to get a usb portable power supply unit (like the ones for charging a phone) and cutting the wire and soldiering it together with the 12v power cable I need (its actually one of those round "laptop style" chargers)

Always been a bit lost when it comes to soldiering wires together, would this even be possible? Would there be an easier way im not thinking of anyway?

Thanks any help is much appreciated

[stef1808]

I cant find an adapter thats the other way round. i.e 12v cig socket input
also ur right, i checked and need 6v min to power it so might be back to square one
thanks for your input