There's always beem a trickle of machines like that. The problem is that they're targeted towards industrial usage and RIOTOUSLY expensive. https://www.bsicom

There's always beem a trickle of machines like that. The problem is that they're targeted towards industrial usage and RIOTOUSLY expensive. https://www.bsicomputer.com/products/fieldgo-m9-1760 https://www.bsicomputer.com/products/fieldgo-m9-1760 for example (the first vendor I saw that actually shows prices, as opposed to just request-for-quote) It starts at nearly $2400 for a low-spec Celeron, and I'm not sure it even has an onboard battery. What I could see as viable would be a micro-ATX case of similar dimensions, sold as a barebones for like $300-- use the extra volume from not accommodating ATX mainboards to store batteries and charging circuitry, which can be off the shelf because space constraints are minimal. Pop in some reasonably priced desktop components, and you'd have a competent luggable for under $1000.