I have a latitude from 2013 that I bought 2nd handed in 2015 or 16. I still run it on holidays (convenient 12.5 inches for travelling) and it still has 4+ hours

I have a latitude from 2013 that I bought 2nd handed in 2015 or 16. I still run it on holidays (convenient 12.5 inches for travelling) and it still has 4+ hours of battery and works pretty well. I switched from Ubuntu 14 to Lubuntu and it feels like new :) Lacks a bit of RAM (4Go) for some tasks but still does ok. Probably its replacement when it dies will be a used thinkpad though, will see.