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What went wrong inside recalled Anker PowerCore 10000 power banks?

lumafield.com

211–220 of 308 posts

Re: What went wrong inside recalled Anker PowerCore 10000 power banks?

#211
Got a recall notice about my few-months-old 20.000mAh Anker power bank from Amazon, went through Anker's verification process and found out that the S/N of mine isn't in the range of affected devices. Dodged a bullet there, also from past experiences [1] with the company their return/replacement process works well.

[1] e.g. BT earbuds where one side randomly stopped working after a few months, got a replacement after just a few minutes of explanation/verification hassle.

Re: What went wrong inside recalled Anker PowerCore 10000 power banks?

#212

For some reason I received a recall notice for one of these from Amazon but I don't recognize it and could not find any purchases in my order history. I vaguely recall my wife might have bought something like this years ago as a gift for some one else but our accounts aren't linked.

if the accounts are not linked, how did you receive the recall and not her?

I can only assume our accounts are linked by address and they do the recall notice (at least) by account address. In other words, they aren't linked but kind of are anyway.

Re: What went wrong inside recalled Anker PowerCore 10000 power banks?

#213
post #177

Earlier quoted context omitted.

> But it’s hard to deny scale: the US is a populous country. But there are more than ONE BILLION more people in China. This is true for the US alone, but US+Canada+EU is on the same order of magnitude, all of which prefer a more-than-zero-trust situation.

Which is also very spread out, with an ocean bisecting. Not exactly "skilled workers right across the street" for most of that land.

China is huge in area too. You don't have one billion people right across the street. Anything that is across the street is, by definition, a localized thing involving far fewer people, which you can totally have in US+CA+EU too.

Re: What went wrong inside recalled Anker PowerCore 10000 power banks?

#214

Earlier quoted context omitted.

The scary thing is you can't put the fire out with water. Your only option is to run.

You can't put the lithium itself out with water, but presumably water would still keep everything around it from burning?

It's not the lithium that's burning - it's first the electrolyte, typically ethylene carbonate, which decomposes the cathode - a process that releases oxygen, which in turn fuels the fire.

There's actually very little lithium by weight in li-ion batteries.

Re: What went wrong inside recalled Anker PowerCore 10000 power banks?

#215
post #187

Earlier quoted context omitted.

Which is also very spread out, with an ocean bisecting. Not exactly "skilled workers right across the street" for most of that land.

not just an ocean, the various governments and visas make it hard to move people you need

Not just people, parts too. Importing parts from the USA to the UK often takes longer and has more paperwork than from China.

Re: What went wrong inside recalled Anker PowerCore 10000 power banks?

#216

Earlier quoted context omitted.

Batteries where "uninteresting" so their production was outsourced to Asia. Chinese invested in battery science, engineering and manufacturing. Fast forward a few decades, and here we are. Now with EVs and energy storage batteries are super interesting, and battery factories are being built in west too - by Asian companies (CATL, LG, Panasonic). Even Tesla doesn't make their own cells, Panasonic does. Tesla's promise…

How does that work out in practice? Panasonic owns the machines, do they employee and manage their own set of workers in the Tesla factory in Reno? and then Tesla pays Panasonic who pays them, even though they're working right alongside the Tesla employees? How distinct is it, really, when they're in the same factory working side by side?

I would imagine this is most likely a shop in shop scenario, which is rather common in the automotive industry.

Basically, a specialized vendor for a given component is setting up their own production/assembly in your facilities - in some instances even along your assembly line.

The workers operating these machines are usually trained and employed by the supplier.

This setup does have some benefits, like less potential for supply chain disruptions as well as guaranteed capacity. But it is extremely personell intensive and generally requires enormous upfront investments.

Re: What went wrong inside recalled Anker PowerCore 10000 power banks?

#217
post #47

Earlier quoted context omitted.

I wish more devices took field-replaceable cylindrical Li-ion cells. They're pretty common in flashlights and rare in other products where they would be advantageous.

I agree, but specifically LFP cells rather then NMC. Less likely to get angry. (My laptop uses these and I appreciate it all the time.)

LFP capacity is terrible. LMFC is a recent development which closes that gap; it's still heavier than NMC or NCA, but that's a worthwhile tradeoff in many applications.

Re: What went wrong inside recalled Anker PowerCore 10000 power banks?

#219

First off, I love Luma Field. Always incredible to see what's going on inside things. Even just fun to scroll through their Twitter. Second, Anker is one of the few companies I actually have a very high trust for. A few years back I bought a wall charger[0] from them, it has 2 USB-C and a Type A. A month in, one of the Type-C ports wouldn't charge if the other port was being used. If you send a support ticket they an…

I've found Anker good although when I tried to use my 'lifetime warranty' on a broken USB C to lighting cable I got some run around from an LLM before swearing at them and getting a result. Even so they last longer than the genuine Apple ones.

Re: What went wrong inside recalled Anker PowerCore 10000 power banks?

#220

I've had my share of spicy pillows ranging from iPad to power bank from upstart company which became spicy after using it for just 3 times[1]. I've been overly cautious of batteries for several years now, I charge my devices with 1A charger and keep it between 40% to 80% . I now carry a single 18650 cell power bank instead of those 10,000 mAh, 20,000mAh power banks. I don't sleep with phone, tablet or kindle on bed a…

Is your house especially warm? I’m not doubting that it happened but I’ve had very different experiences (one battery problem in a couple decades) and am curious what might explain the difference other than bad luck.
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