1) We try to have a spare AC Adapter for each of our locations, so that we don't have to carry it around (it becomes heavy if you also have other non-computer stuff to carry also).
2a) We have both X1 Extreme (Gen 1) and X1 Extreme (Gen 3). Both uses the 135W AC Adapter (slim tip).
2b) Although both looks similar, X1 Extreme (Gen 1) and X1 Extreme (Gen 3) chassis is different, to the point that you cannot interchangeably swap the aluminum/carbon_fiber body panels.
~X1 Extreme Gen 3 got rid of the proprietary LAN dongle port, and 3.5mm audio jack location moved slightly as a result. There is no more Smart Card option, and a new option for WWAN LTE Modem with SIM Card slot where the Smart Card slot was.
~I've tried to swap the bottom cover of the X1 Extreme Gen 1 to use on the Gen 3, and it does not fit at all. Don't even try.
~I strongly suspect the same situation with P1 (Gen 1) vs P1 (Gen 3), as the latter also had dropped the Smart Card slot for WWAN LTE modem option.
3) If in a pinch and we do not have such a 135W AC Adapter around for our X1 Extreme, we can manage for a few hours with a T410 90W AC Adapter (7.7x5.5mm round tip) with the "round-tip-to-slim-tip-adapter" such as:
www.walmart.ca/en/ip/Purpleleaf-Tip-Ada ... 2GDC2YNT1K
Under low CPU/GPU usage conditions for our X1 Extreme + 90W AC Adapter, our battery level very slowly go down during a few hours of constant use.
But under high CPU/GPU usage, this above solution still drains the battery eventually.
But it's still better than having *no* AC Adapters around!
4) *IF* you have money to burn and you *must* get a 'smaller' AC Adapter:
4a) You can buy a P1 with i9 or Xeon CPU, and it should come with that '30% smaller' 230W AC Adapter (slim tip).
4b) OR you can buy the 40ANY230US ThinkPad Thunderbolt 3 Workstation Dock Gen 2, which comes with this same '30% smaller' 230W AC Adapter (slim tip).
This is the only other way that I know of to get this 'smaller' AC Adapter, without buying that glorious P1 laptop itself, as of Jan 2021:
http://support.lenovo.com/us/en/solutions/PD500333
atagunov wrote: ↑Sat Jan 30, 2021 6:11 pmI read that all the following Thinkpads use (almost?) identical aluminium bodies and keyboards:moofish2842 wrote: ↑Fri Jan 29, 2021 11:24 pmI believe the only 15" thinkpad without a numpad made since the w530 is the X1 Extreme. It is very recent...
- X1 Extreme (abbreviated as X1E)
- X1 Extreme gen 2 (abbreviated X1E2)
- P1
- P1 gen 2
The difference between X1E and P1 I understand is mostly in the supplied graphics card. Same for generation 2 of them. I also read those bodies aren't bad though definitely not as strong as W530. I have also noticed that gen 3 has come out at least for P1 but I have no clue if it's still same body as gen 1 and gen 2 or not. Another advantage of W530 is that with the right amount of tinkering it is possible to fit a classic keyboard from *20 generation. Just saying Read the manuals! You'd need to isolate certain pins, possibly fit a T520 palmrest and mess with flushing BIOS in such a manner so that to replace EC firmware. Caps lock led won't work w/o a further fancy mod and there but otherwise it will work. Also I believe X1E and P1 no longer have an easily swappable external battery, which can be viewed as an advantage for W530. On the other other X1E and P1 do support NVMe SSD-s..