laptop car adapter

hello,i have a toshiba x205 sli3 laptop and i would to use it also with my cars battery,is there any adapter for that use?is that safe for my laptop (battey,and laptop use in general)

 

There are two solutions:

1. Use an inverter such as one of these to produce mains voltage from the 12V supply and then use your notebook's PSU. The inverter power rating should be at least as much as the PSU's power rating unless you know that you don't use the full capacity of the PSU.

2. Use a notebook auto adaptor such as this Targus auto/air adaptor. Look around the Targus / Bekin / Kensington / iGo websites for more choice.

Option 1 is cheaper but probably less power efficient and also gives you the opportunity to use other low-powered devices in the car through their mains adaptors.

John

 

thanks john for your advices,my laptop psu is 180 watt and the inverters you show me is 150 watt,will i have a function problem using them?i cant find an 180 watt inverter..also could you please tell me if with the inverter should i plug and use my laptop or it should be only use it for charging.

 

There are more inverters here.

180W is a lot of power. So I suspect you have some headroom. You can find out the true power consumption with a power meter.

180W represents 15A at 12V so, without conversion losses, it would drain a fully charged 60 Amp-hour car battery in 4 hours. It might stop sooner, since many recent inverters cut out when the battery's voltage drops to a level where starting the engine may be difficult. But, if you are not using all the hardware power of your notebook (it may be 60W or less under light load) then the battery time will be much longer.

John