Plug in inverter

[Jack TGA]

I want to buy an inverter for my laptop.
1. The laptop doesn't have a battery. Will the inverter work to power the laptop without a laptop battery and with the van engine off? (or do inverters only charge batteries)
2. Picture of my laptop cable attached. Do I need a 200w or 300w inverter?
3. I'm looking at these two. Can anyone recommend anything better?https://www.amazon.co.uk/gp/product/B07T676V16/?tag=mhf04-21
https://www.amazon.co.uk/gp/product/B0111YIFK0/?tag=mhf04-21

 

[NicM]

240v at 1.6A = 384 Watts, inverter will work fine, needs 400 Watts.

 

[pappajohn]

You could use a 12v to 19v converter instead of a power hungry inverter.

Both the inverters in your links are modified sine wave jobbies and could cause serious damage to your laptop.
If you must have an inverter it needs to be pure sine wave and will be considerably more expensive...probably in the £100's

 

[autorouter]

19V at 4.74A = 90 Watts, a 150W inverter will work fine. But not these, they are not Pure Sine Wave. I'd go for a 150W Pure Sine Wave rather than a Modified Sine Wave or Quasi-Sine Wave. If it doesn't say Pure Sine Wave in the Ad, then it's not.

Sensitive electronics is guaranteed to work with Pure Sine Wave. For Modified Sine Wave/Quasi Sine Wave you're taking a chance. For example, one of these links specifically excludes one type of laptop charger (Lenovo). You may be lucky, of course.

 

[autorouter]

You could use a 12v to 19v converter instead of a power hungry inverter.

Definitely the best idea. Something like this, with multiple connectors to fit most computers. I have a couple of the 65W ones, but this 90W adapter should be OK for the OP.
Amazon product ASIN B071VC94V2

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[Minxy]

I'd definitely go for a dedicated 12v converter rather than an inverter, we have a couple similar to the one autorouter links to (1 to use and a spare just in case ... can be doing with a flat laptop when away and not able to see what you lot are up to!).