It makes sense. There are plenty of easy-to-work front panel inserts, a power supply box with an AC cord (the power supply is long gone), and it is big enough to fit the battery.

An uninterruptible power supply (UPS) offers a simple solution: it’s a battery in a box with enough capacity to run devices plugged in via its AC outlets for minutes to hours, depending on your ...

That and the closest a given power supply is to its max load output, the lowest the efficiency. So, if your system needs 500W at full load, it's not wise to get a 550W PSU but, at least, a 650W one.

Power Supplies Thermaltake Smart RGB 600W Power Supply Review Mike Sanders March 18, 2019 Last Updated: March 30, 2019 5 687 ...

We aren’t sure if [bm_00] needed a regular power supply to handle a graphics card or if the original power supply died, but either way, the HP small-form-factor box needed a new power supply.

Such was the case with one unlucky Reddit poster, who opened their new 500-watt power supply to find a conspicuous steel box inside. Once opened, the box was found to contain nothing but a plastic ...

If the required power is not delivered to the motherboard, the computer will fail to start. A common failure point for desktop computers is the power supply box itself.