One important factor in this is how large is the whitelist? If the manufacturer offers that model with 3-4 different cards as options, you know they'll all be supported. On the other hand for cheaper laptops (like a ThinkPad Edge I once had to deal with) that are non-customizable the whitelist may only have the one card model it was released with.
For Lenovo models at least you can dig through their technical documentation and get a listing of part numbers that should be compatible.
They'll hack in and then just add affiliate / ad links hidden everywhere from view so they can try to raise the google ranking of some other site (like one that sells viagra). Google has done much better recently fighting this type of reputation spam.
Me : I need a new battery for my Macbook.
Apple : Okay, but be sure to get a battery directly from Apple. Third-party batteries are no good!
Me : Fine, I wanna order an A1280 battery.
Apple : Oh, we don't sell those anymore. You'll have to get one somewhere else.
I told one of my customers, who has a lot of MacBooks in his company, about this. So he started to bring all MacBooks older than 4.5 years to Apple to get the batteries replaced. And every single time Apple made some suspicous battery-quality-tests and declared that the batteries were still good and didn't need to get replaced. (The batteries generally had a runtime of less than 30 minutes after 4.5 years).
"No, battery needs no replacement.", the Genius would reply.
"I do not ask for a free replacement, you know, I am aware I have to pay 140,- Euro for it. The battery runs only for 20 minutes, I do not think it is good."
"Yeah, maybe you have to calibrate it. But the test says, the battery is good."
"So, in 6 months I will get no new battery, as the model is legacy?"
"Ah, yes, this is true."
"So, would you please replace the battery, for 140,- Euro, please, please?"
This dialog repeated for every single MacBook.
I switched to ThinkPad/Linux shortly after. Battery-wise doesn't seem to be much of a difference ;-)
I think my Macbook was the last model that even had an easily replaceable battery. I think they glue 'em in now.
Also, at the time it had some ridiculously low cycle count due to a bug in the batteries firmware.
This, thankfully, was back in the day when the OEM crapware only loudly complained about me using a "non-genuine battery". Thankfully, the crapware runs only in Windows, and for the most part, I used Linux.
Haven't we seen enough hoverboards go up in flame to know even first-party stuff can sometimes be suspect? (and they're not the only example through the times of flaming batteries.)
Even just looking at the parts cost, are you sure you would still save money compared to going with the original battery? And of course you have to add your own time to this (if you actually like doing this, then it'll be cheap I guess) and the value of the warranty that you certainly will have voided at that point.
I totally understand that this might be a fun project to do and it will certainly be a nice achievement when you're through, but can this really be rationalised with cost of the original part?
Apple systems are generally better off in this regard as vendors like iFixit can make official batteries available for older systems, but for other vendors, no such luck. For example: I can't find any source for an official Lenovo battery for my first-gen X1 Carbon. It's also long since out of warranty.
There is still the time consideration, but assuming you have time available to do the work, why not?
These are hybrid Windows Tablet PCs built for enterprise users so I tend to buy them refurbished from Fujitsu (on eBay or directly). IME, they are very upgradable, very high quality, and with unmatched customer support.
Replacement 3 hour battery for $AU15 + shipping on ebay. I didn't check what a "genuine" one costs or if they're even still made but I suspect it would be more than I'd paid for the machine.
I'd appreciate it if there was a better spectrum of choices.
So she went to market somewhere in Asia, fund a stall selling handbags, and started to haggling by pointing out the various ways the bags where fake.
Eventually she settled on a bag. She knew it was fake, she knew it would not last as long as the real thing, but she hoped it would at least hold until she climbed the corporate ladder enough that she could replace it with the real thing.
Per a Lenovo staff member in their forums ,
"The machine will boot (with a warning message displayed by BIOS and by Power Manager), and it will even discharge the unauthenticated battery. The issue is that the machine will not charge the unauthenticated battery. With many of the new systems supporting RapidCharge where you can get to 80% charge in 30 minutes, it is just too dangerous to try to charge someone's aftermarket ebay battery."
I have to agree with that. Search "hoverboard fire". That's what it looks like without all the usual safety devices. Most of the safety devices are in the battery pack. The track record for cheap off-brand battery packs is not good. There are supposed to be seven safety devices, most of which are in the battery pack. A laptop battery without those is a bomb.
Overcharging a lithum-ion battery will cause it to go into thermal runaway and catch fire. The sensors and logic for detecting when to stop charging are mostly in the battery pack. I don't blame Lenovo for being unwilling to charge strange battery packs.
Underwriters Laboratories is, as of this week, offering safety testing and certification for hoverboards. Any previous UL sticker on a hoverboard is fake. UL insists that the battery and charger must be tested and certified together. There's no standard for charger/battery interaction for hoverboards yet. This matters; it's not standardized which side is responsible for which parts of the protection.
The whole pile of turtles is about shipping new units...
I don't know, any one here familiar with the laws pertaining to this?
For more complicated problems: http://dangerousprototypes.com/docs/Open_Bench_Logic_Sniffer