That's where I am today with my Fairphone.

I honestly held on to my old Nokia, replacing batteries and cases until Fairphone came along and then I jumped from 90's tech to modern day.

0-->100% in 10 seconds (with a 2nd battery)

Still have my LG Optimus on Android 2.x somewhere. With 512MB RAM I dunno what to do with it outside of a clock display, but I have it (and a spare battery).

And it would still run when you had it plugged in. I could remove the battery from my old Galaxy S2, plug it in and it would work. And if I remember correctly, the same thing went for most of the phones I had before that.

I used to keep a charged spare on me. And this was back when a phones battery life was like 3-7 days.

Stop making phones thinner God dammit. I don't want a thinner phone. I want longer battery life and a removable battery so I can fucking double the shitty longer battery life I get.

I just got a fairphone 6. Removable battery!

Didn't EU pass a regulation regarding that? If I recall correctly all portable devices sold in the EU after February will will need to have a user replaceable battery.

All batteries are removable once

The charging cirtuit that also tries to guess the battery percentage can be the problem. The 'guessed percentage' will depending on the chip and programming go down even if you solder in a dc power supply. When it hits the 0% it will shutdown.

Thats the case for some smart phones.

Hahaha, thank you for defending me! 😄

Just to clarify though, the “they said it couldn’t be done” part was mostly me being ironic and unnecessarily dramatic for the post lol. The comments on this whole project have actually been overwhelmingly positive and helpful.

People here are the reason I even tried some of this stuff in the first place.

But I genuinely appreciate you having my back. And the S5 being able to cold boot without a battery is really interesting — Pettyl unfortunately needs its battery as a starter motor. 😂

well ACKSHUALLY 🤓☝️

Unfortunately Pettyl is stupid enough to need the battery to boot, but smart enough to forget about it immediately afterwards.

I don’t make the rules, I just host WordPress on an 8-year-old Motorola.

Since their burst power consumption started using more current than a capacitor in the charging circuitry could provide

This is obviously ridiculous.

So I’ll do it.

Here I was thinking you should add a capacitor so there is some juice if the phone draws more than the USB can supply. Maybe even a super cap so you get a more robust drain discharge cycles.

Usually phones have 3 pins on the back for the battery, one of them - usually the one at the center - reads the battery resistance, so if you add a resistor between that pin and another pin, it will fool the phone to belive it has a beattery

Edit: spelling

Nah, an actual UPS with 7kg batteries is way cooler.

But I really appreciate the feedback!

Aye aye, captain🫡

in my experience phone batteries plugged 24/7 will increase in size

When in Besźel, think Besźel!

https://www.youtube.com/watch?v=ZXrBBXaKGOo

No more than any other electrical device.

That's perfectly fine. The only issue is that it may limit performance on some laptops.

It sounds like a good idea until you remember that USB provides 5V and the battery contacts are designed for a Li-ion battery and its management circuitry.

Wiring USB directly to the battery contacts would basically be like noticing your car runs on petrol and pouring it directly into the engine instead of the fuel tank. The general concept of “engine needs fuel” is technically correct. The implementation leaves something to be desired.

The USB port and the phone's power-management circuitry exist for a reason, and bypassing them could damage the phone or make it behave in exciting new ways.

A properly regulated dummy battery, however, might actually work. Unfortunately, that means I now have another terrible idea to investigate.