Here's some zoom-out options. If you travel a lot and have to work, you need mobility, but possibly not as much as you think. If compact wireless input devices

Here's some zoom-out options. If you travel a lot and have to work, you need mobility, but possibly not as much as you think. If compact wireless input devices and a hotel TV, borrowed screen or correctly configured tablet may be adequate, then you only need a compute box not a full laptop and you can consider higher end ARM boards and a purchased or custom battery bank. If you don't have a huge travel requirement, you may be better off buying two desktops than one laptop as they are far cheaper, easier to maintain/repair, provide better input devices, better and far more upgradable. Carry your data around on a USB stick or SSD.