If you own a laptop that’s got a few years on the clock, you’ve probably contemplated getting a replacement battery ... scratch built a custom battery for his ThinkPad T420.

This is a fully open source laptop battery design. The design uses an attiny85, which can reply to the T420 motherboard's SMBUS requests. Arduino Uno/Mega (for programming the attiny85, Mega needs ...

There is a bug either in the Linux kernel or the lenovo power management, that when not charging, only one battery is used and never the extra battery. When the first battery is empty the laptop can ...

We recently reviewed the newest Lenovo ThinkPad X1 Carbon Gen 13 with Lunar Lake. Since 2021, Lenovo has not changed the battery capacity of the X1 Carbon, keeping it steady at 57 Wh.

Lenovo’s ThinkPad is an iconic machine that often falls within the best business laptops and the ThinkPad T14 Gen 5 carries that tradition dutifully forward (for the most part). This machine ...

But when the battery in their ThinkPad wasn’t able to muster up more than 20 minutes of runtime, [Shrinath Nimare] saw an opportunity to dig deeper and do a bit of investigating. The problem ...

With its redesign of the popular ThinkPad ... battery life juggernaut that it once was. But when it comes to battery life, with the Gen 9 update, the X1 Carbon is back. For the ninth-gen model ...

The last gaming laptop we reviewed, the Lenovo Legion 9i Gen 9 ... There’s a large 94 watt-hour battery packed into the ThinkPad P16, but also some power-hungry components and a large ...

Tech changes fast. Features we get excited about seem quaint in mere years — it’s a constant evolution. So, it’s rare indeed that a line of devices keeps a core feature around for a whole decade, let ...