Re:The ThinkPad T420 – the last laptop you'll ever need
by notpushkin on Sunday February 05, 2023 @10:11PM
(#34672831)
You can use a modern USB-C charger with old laptops, you just need a cable. I was successfully charging my T420 for years using a Baseus GaN 65W charger.
I have a circa 2008 15.4” Precision that I’ve upgraded quite a lot thanks to its modularity and expandability, and it’s still pretty serviceable except that even with a brand new larger-model battery it’d be a stretch to get 4-5 hours of life out of it, and its charger brick is monstrous. It’s a stark contrast to a 16” M-series MBP, which is also a high-performance (if not quite workstation) class laptop, but gets somewhere between 2-4x the battery life and can charge up overnight with a compact 30W USB-C phone charger without any adapters.
It’d be interesting if one of those projects that retrofits old ThinkPad shells with modern mainboards were built around an ultra-efficient ARM SoC instead of the usual x86 fare. That’d address the issue pretty well.