Why remove the battery when it is a perfectly working built in UPS?
Comment on Ideas for how to repurpose a half broken laptop
appel@whiskers.bim.boats 8 months ago
Remove the battery, take the motherboard out of the case. Plug the motherboard in, and voila you have a larger and more powerful raspberry pi. You could use it as a second node for control, management, observation purposes, etc.
poVoq@slrpnk.net 8 months ago
huginn@feddit.it 8 months ago
Because over time the battery degrades, swells, and becomes a fire risk.
Keeping it only 80% charged can help mitigate it but not fully.
poVoq@slrpnk.net 8 months ago
That is largely a myth and in my experience never happens with higher quality laptop batteries. But yes limiting charge doesn’t hurt if it is only used as a UPS anyways.
huginn@feddit.it 8 months ago
What part is the myth?
Which batteries are “high quality”?
Cause it happens… Pretty regularly if you’re not limiting charging. The older the battery the more likely.
Railcar8095@lemm.ee 8 months ago
Not a myth. Better batteries might have better safety measures, but none is inmune. It might not have happened to you but I’ve seen it happen in several high end/expensive brands already.
possiblylinux127@lemmy.zip 8 months ago
It will be a really bad UPS at best
possiblylinux127@lemmy.zip 8 months ago
Because it is a safety issue and the battery isn’t designed for that anyway. A UPS is designed to stay charged for a long period of time and laptop is not.
fuckwit_mcbumcrumble@lemmy.world 8 months ago
If you remove the battery it will either A not work or B run extremely slowly. Always have a functional battery in your laptops.
Ideally find a way to limit the charge of the battery. But if you can’t nuking your battery is better than running at 800mhz or whatever your lowest clock speed is.
appel@whiskers.bim.boats 8 months ago
I’ve run laptops before without batteries a few times and never had issues, is there a reason for the slowdown?
fuckwit_mcbumcrumble@lemmy.world 8 months ago
Power consumption. Especially with turbo boost power consumption can easily spike well above what the power brick can deliver, so the battery is used like a capacitor. Or shit even without the spikes chargers can’t keep up. My laptop will actually discharge under full load with the full 240 watt charger.
It’s not normally an issue on REALLY low end devices (sub core i, like pentiums or atoms), but anything high end will reduce it’s power consumption without a batter installed.
possiblylinux127@lemmy.zip 8 months ago
That’s not something that should ever happen on most devices. If your battery is discharging under load you likely have a faulty device.
appel@whiskers.bim.boats 8 months ago
Interesting, never had that happen to me, but then perhaps you are using a laptop with a dgpu? I have not been. My laptop generally consumes 4w at idle and up to 15w under load, so I don’t see this ever outpacing the 60w charger. The CPUs with the highest tdp are only around 100w anyway right? And in that case the laptop comes with a higher wattage charger. But you’re right I guess it could happen depending on the hardware, never personally seen it however.
possiblylinux127@lemmy.zip 8 months ago
Make sure you have a cooling solution…
appel@whiskers.bim.boats 8 months ago
you can keep the fan and heatsink on the board
SnotFlickerman@lemmy.blahaj.zone 8 months ago
Great suggestion, but I’m not entirely sure it’s 100% possible on all models? Some models are built so that it won’t turn on without a battery installed (much like phones) and that the power has to pass through the battery before it reaches the motherboard.
Presi300@lemmy.world 8 months ago
It does work without the battery and the model is: dell G3 3579, I just didn’t think the model was that important to mention.
SnotFlickerman@lemmy.blahaj.zone 8 months ago
95% of the time the exact model isn’t super important, but when it comes to the physical build like whether it can run without the battery, it can be useful to know.