91–100 of 105 posts
I'm on the lookout for a FHD IPS screen for the T420 that is compatible for max 150$. Where do I source those?
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I've been replacing batteries in electronic gear since I was all of five years old. I think your average consumer would be able to handle it.
It's no different if you replace it yourself, that's tangential to my point. You'd be sourcing a specialized replacement battery online and there's a risk that the battery you get is an unsafe knockoff.
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That is a different problem. I've also been able to buy non-knock off batteries for just about all electronics up to a few years ago when companies decided that soldered in batteries shorten the time-to-landfill of their products improving their revenues. Seriously: there is no reason why there could not be a standard form factor for battery cells. If we can do hard drives, CPUs and RAM I'm sure we can do batteries t…
You're still talking past me. A standard form factor won't solve the trust problem. Most people don't know how to choose a proper hard drive compatible with their M.2 adapter or cable for their USB device. Many people also buy counterfeit USB sticks and SSDs that don't have near the capacity they advertise. You and other tech-literate people aren't the only consumers manufacturers are selling to. Nor are people alway…
If I could do it at 6 and my mom can do it at close to 80 then I really don't see why other people could not. Sometimes there just isn't a problem unless you make one. Standardize the cells, sell them through the supermarket chains at a normal price, just like Duracell and other quality battery manufacturers have been able to do for ages. Problem solved, once and for all. No need to go through AliExpress, Amazon or some other shady online store, if you are that concerned about trust then the only way to solve that is to buy from a reputable vendor.
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The T420 is old, but still has some advantages over laptops currently on the market. Up until 2018 many laptops still had dual core cpus like the i7-7500u which are worse than the i7-3840qm that can be put in a T420, and the few currently available laptops that have 1440p displays and quad core cpus are still pretty expensive. Some other reasons people still use the laptop are being able to use coreboot with it and t…
Not old. Perhaps forever young. My T420 is 9 years old, both batteries are shot but that's my 'desktop', also have an X220, identical last-of-a-generation keyboards, with a fresh 9 cell battery for when on the move. Upgraded with SSDs and RAM; probably not great for gaming or video editing, but no interest in that and there's a PCMCIA bay sitting there just for such applications. I can't see myself changing for at le…
Probably not very relevant to you, since Macs don't like being bashed into the floor too much, but the new post-butterfly keyboards are really nice IMO. Way nicer than that of my late 2013 MBP that got a new keyboard last year. They've really fixed that issue for me, and you still get the Touchbar with a physical ESC key, which IMO is a lot more useful than F-keys ever were.
I have a dream: A large company buys Thinkpad as a brand and launches a few shiny Linux Laptops
Instead of making bad Mac Air clones a company should make 1:1 replicas of sturdy, old school, ThinkPads (t420, x230, x220, etc) There's a market for cheap, reliable, battle tested equipment
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Could you measure a calibration discharge curve with a (digital) bench power supply draining constant current (or constant power) and use it as a LUT?
Not as simple. Voltage also changes with load and temperature for multiple reasons. You'd also need to account for that.
This is a cool project, and I love it when somebody "takes back" their hardware a little bit or keeps them useful through hacking instead of throwing it away. But it shows how irrationally our society is set up in some aspects. In an ideal world, you could just send the Lenovo engineer a mail and ask for the firmware source. But the incentives are such that they keep it secret, probably because they make a lot of mon…
This is why my next laptop will be a MNT Reform, you can change the individual cells yourself: https://www.crowdsupply.com/mnt/reform
Earlier quoted context omitted.
That is a different problem. I've also been able to buy non-knock off batteries for just about all electronics up to a few years ago when companies decided that soldered in batteries shorten the time-to-landfill of their products improving their revenues. Seriously: there is no reason why there could not be a standard form factor for battery cells. If we can do hard drives, CPUs and RAM I'm sure we can do batteries t…
You're still talking past me. A standard form factor won't solve the trust problem. Most people don't know how to choose a proper hard drive compatible with their M.2 adapter or cable for their USB device. Many people also buy counterfeit USB sticks and SSDs that don't have near the capacity they advertise. You and other tech-literate people aren't the only consumers manufacturers are selling to. Nor are people alway…
It would also make it easier for people to learn how to replace batteries.
- Aircon
- CPU
- Motherboard
- Batteries
- Cars
- Motorbikes
- Ovens
- CRT/LCD screens ?
- Heck I would love an opensource self build-able dot matrix printer with the ability to create my own ink