A very long time in the past, a laptop computer was a fundamental factor, and you possibly can just about run one simply by hooking up an influence provide to the battery contacts. A contemporary MacBook is altogether fussier. Nonetheless, when [Christophe] was caught within the midst of a 2020 lockdown with no elements accessible, he discovered a technique to get his broken MacBook up and operating with no battery.

The issue was led to by a failing battery within the MacBook Professional 13″ from mid-2018, which swelled up and deformed the laptop computer’s case. Elements have been unavailable, and the MacBook wouldn’t run at full pace with no battery fitted. That’s as a result of with no battery current, the MacBook would ship a BD_PROCHOT sign to the Intel CPU, telling it to decelerate attributable to overheating, even when the chip was cool.

To get round the issue, [Christophe] used a software known as CPUTune. It permits fidgeting with the assorted CPU settings of a MacBook. He deactivated the BD_PROCHOT sign, and likewise the CPU’s Turbo Increase function. This ended the worst of the thermal throttling, and enabled semi-normal use of the machine.

It’s unclear why Apple would throttle the CPU with the battery disconnected. [Christophe]’s workaround obtained him again up and dealing once more within the midst of a tough interval, regardless. We’ve seen another nice Macbook hacks earlier than too, like this wonderful save from critical water harm!

Due to [donaldcuckman] for the tip!]