Long story short, my laptops DC input is no longer working. Yes, I’ve tested every aspect of the power supply. I even measured the motherboard input voltage, and it is being properly fed. I suspect a faulty DC-DC converter.
So, I had this idea of removing the battery permanently, and instead emulating it with a power supply with matching voltage. I don’t really need the battery anyway (I mostly use a laptop for the form factor).
In theory, the laptop will then think it’s running off of battery power. Permanently. Are there any consequences in terms of performance that could arise from this? Of course, the power settings will need to be adjusted, but beyond that I’m wondering if there’s a hardware aspect that I cannot control.
I think it would be fine. You’ll never try to charge it obviously.
Will the laptop be happy with that though? It might be expecting communication with the BMS. I’d just try it and see.
I’m fine with an “OmG Battaray err0r!!!1”-warning that I can send to /dev/null as long as it works. I’m more worried about performance, as this is a gaming laptop that is used as such.
Indeed, the laptop will almost certainly want to go into a lower power/slower mode, but I’m sure you should be able to configure it to force it to run at full speed, with enough effort anyways.
Make sure your power supply is rated for high enough watts/amps.