Help regarding MAN TGX - Inverter for laptop

I am assigned an MAN TGX for a role on containers, the unit is an Artic (Does that change battery size etc ?)

What i would like some advice on please, is what inverter to use, in which can be used for MAN (and other Units if need be) so that it does not melt anything.

I plan on using a Toshiba Laptop (What would my output be from the inverter too ?)

Links of where you brought would not go unmissed.

Yours in appreciation,
Voodoo

600 watt 24v inverter from Maplin powers my laptop no problem for the last 2 yrs, i just took the cigarette lighter lead off and fitted a hella plug as they dont get so hot