Car/boat adapter for VAIO VGN-B1VP

[subklm]

Hello,

I want to use my laptop in my boat. It has a 12v power supply. So I need a adapter. Who knows a brand/type of adapter suitable for my laptop.
I have seen a "Seven star" 70W adapter(SS 218). Is this 70W output sufficient? Does anyone has experience with this adapter or another one?

Many thanks,

Hans

[Eliterhetsam]

i use a 250watt power inverter purchased off ebay for £30. It comes with a cigarette and battery connecter.

My daughter watches tv using it and I've powered my laptop without any problems.

Hope this helps