this post was submitted on 08 Mar 2024
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That’s… not true.
It will still run through the converters and boards inside the laptop since it runs on DC and the power from the outlet is AC. Depending on how it’s setup, the current very well could go through the battery instead of bypassing it before it reaches the laptop from the converters.
Basically you don’t know unless you try. Some laptops work when you remove the battery and some don’t. Just like phones or any other electronic.
Current can't go through a battery, only in or out.
When connected to AC it will be running off AC, and also charging the battery.
That's not entirely true. A battery can definitely be part of a running circuit and current definitely goes through it, otherwise it wouldn't be usable.
It can be part of a circuit, but charge either goes in or comes out, it can't do both at the same time.
I'm sorry but you're mixing concepts. Electrical charge: measured in Coulombs, physicaly either electrons or gaps. Current: movement of electrical charge. Battery charge: chemical capacity to generate a voltage differential. Voltage differential: the potential energy difference that pushes charges through a circuit.
Electrical charges need to move through a battery for it to do useful work. If the battery is causing the movement (current), it is depleting its chemical charge. If the battery is not pushing the electrons, it's likely being chemically charged (the complexities of which are beyond a lemmy comment). In both cases, the battery is part of the circuit that is conducting electrical charge. If there are no parallel paths and you remove the battery, the circuit ceases to exist and so does the current.