News for hackers. Stuff that matters.
Re:Open Source Thinkpad T420 Battery Design by captainmuon on Sunday August 30, 2020 @03:25AM (#24321934)
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 money with batteries. So hackers spend a lot of time reverse engineering stuff. It seems really inefficient.

Re:Open Source Thinkpad T420 Battery Design by holri on Sunday August 30, 2020 @06:32AM (#24322528)
This is why my next laptop will be a MNT Reform, you can change the individual cells yourself:

https://www.crowdsupply.com/mnt/reform

Re:Open Source Thinkpad T420 Battery Design by danbolt on Sunday August 30, 2020 @06:26PM (#24326482)
I just received my developer beta MNT Reform, and I've been really enjoying it. They keyboard takes a bit of getting used to, but everything's very cute.
Re:Open Source Thinkpad T420 Battery Design by silly-silly on Monday August 31, 2020 @05:24AM (#24329717)
Any chance you could host a 'sosreport' so I could get a look at the hardware config ?
Re:Open Source Thinkpad T420 Battery Design by Waterfall on Sunday August 30, 2020 @04:02AM (#24322047)
What is irrational? These batteries have been cloned cheaply so they're already reverse engineered. You can find them all over eBay. If this works on the T430 and x230 it will be very impressive.

I don't think this generation had DRM on the batteries. The new ones did and they're not cracked.

Re:Open Source Thinkpad T420 Battery Design by jmnicolas on Sunday August 30, 2020 @05:40AM (#24322378)
> I don't think this generation had DRM on the batteries. The new ones did and they're not cracked.

TIL that there are DRM even on batteries. What a sad state of affairs.

Re:Open Source Thinkpad T420 Battery Design by jhanschoo on Sunday August 30, 2020 @05:54AM (#24322424)
DRM on batteries of expensive electronics seems consumer-friendly to me. Most consumers' experience with battery replacement would be sending it for replacement by a technician. Battery DRM would make it difficult for the consumer to end up with an unsafe battery in their device and pockets.
Re:Open Source Thinkpad T420 Battery Design by morsch on Sunday August 30, 2020 @06:21AM (#24322502)
There's an alternate strand of reality where you're arguing for mandated licensing for kitchen utensils.
Re:Open Source Thinkpad T420 Battery Design by jacquesm on Sunday August 30, 2020 @06:10AM (#24322480)
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.
Re:Open Source Thinkpad T420 Battery Design by jhanschoo on Sunday August 30, 2020 @06:29AM (#24322525)
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.
Re:Open Source Thinkpad T420 Battery Design by jacquesm on Sunday August 30, 2020 @08:15AM (#24322814)
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 too.

Re:Open Source Thinkpad T420 Battery Design by jhanschoo on Sunday August 30, 2020 @10:59AM (#24323328)
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 always sufficiently educated, or living among stores with sufficient reputation to source from a reputable aftermarket vendor for their replacements.

Re:Open Source Thinkpad T420 Battery Design by jacquesm on Sunday August 30, 2020 @03:04PM (#24325062)
Look, I'm really not sure where you are coming from. Batteries are solved problem since 1920. It's just gadget and computer manufacturers that suddenly see a way to make a uick buck and to drive their cycle of planned obsolescence.

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.

Re:Open Source Thinkpad T420 Battery Design by def_true_false on Tuesday September 01, 2020 @02:16PM (#24344921)
The trust problem is better solved by relevant legislation. The counterfeit problem is better solved by relevant legislation. Intentional incompatibility with generic replacement parts will eventually also be solved by, you guessed it, relevant legislation.

See also: vacuum cleaner consumables, independent car repair

Re:Open Source Thinkpad T420 Battery Design by mimi89999 on Sunday August 30, 2020 @06:32PM (#24326522)
It would give reputable battery producers with all kind of certificates a thing and not buying dubious compatible batteries from Amazon/EBay/Ali/whatever a thing.

It would also make it easier for people to learn how to replace batteries.

Re:Open Source Thinkpad T420 Battery Design by thatcat on Sunday August 30, 2020 @02:09PM (#24324647)
Why not argue for better battery certification and quality control or more tolerant phone designs? You could probably detect low quality batteries with software and sensors and notify the user.
Re:Open Source Thinkpad T420 Battery Design by spyridonas on Sunday August 30, 2020 @06:26AM (#24322517)
If the companies where open to repair the technician/end user would say "Hey Apple, i need a battery for the 6S" There's no need for DRM.
Re:Open Source Thinkpad T420 Battery Design by zhte415 on Sunday August 30, 2020 @09:26AM (#24323014)
It doesn't seem consumer friendly to me. Aside from laptop, phone is five years old, replaced (consumer serviceable) battery twice (<$20), re-soldered USB connector once because of worn-out charging ($5, bought on ebay, don't have a solder, friend did it), replaced screen once due to a crack on screen and heavy rain. SD card of course so 8GB phone boosted by very affordable 64GB. Phone was less than $300, upfront no plan, when new.

Very consumer friendly phone.

Re:Open Source Thinkpad T420 Battery Design by chongli on Sunday August 30, 2020 @10:51AM (#24323289)
When counterfeit batteries can explode and cause serious injury or death, I consider any measures to have the device reject counterfeit batteries consumer-friendly.
Re:Open Source Thinkpad T420 Battery Design by dt3ft on Sunday August 30, 2020 @05:58AM (#24322449)
Same here. What a wonderful world they've built for us, eh?
Re:Open Source Thinkpad T420 Battery Design by 6510 on Sunday August 30, 2020 @06:00AM (#24322458)
While we sat here and watched. :P