The T420s' battery is rated 44Wh, you'll get about 3h+ under the moderate usage. You can use Lenovo Power Manager (advanced>battery information) to see how much wear it has (cycles, actual capacity). Mine (Panasonic), after 4 years and less than 50 cycles is at 27Wh. If you want a cheap ultrabay ba...

My sales-person gave me this information: https://drive.google.com/file/d/0B_pcq5NoOpJvcjIxTGNPel9iWGc/view?pref=2&pli=1 /He said something about 2h.../ - Is it good :?: However, it will not be with UK layout and will need replacement :? https://drive.google.com/file/d/0B_pcq5NoOpJvUWladWNFSHhQMTA/v...

How can I check the battery life status and before I make a deal for the used t420s?
What is the optimum characteristic for this model (3-4, 5h ...?). Without gaming >normal/standart usage.

I'm looking for a mobile, lightweight laptop for learning programing with a good screen (matte, 1600x900) and an ergonomic keyboard. I think that t420s optimal choice - last Thinkpad with classical keyboard and only 1800g. I found fine t420s but it's German keyboard (large ENTER). Which other models...