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The next generation of wall chargers

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181–190 of 203 posts

Re: The next generation of wall chargers

#181
post #21

Earlier quoted context omitted.

Do you have an example you'd hold up as the ideal or best case outlet?

The UK plug design is generally regarded as the best of the standard ones https://www.fastcompany.com/3032807/why-england-has-the-best... From my experience with some amount of traveling, I would agree that its very nice to use in practice and definitely got a lot of things right.

You've never stepped on an UK plug at night, have you?

Re: The next generation of wall chargers

#182
Since people are throwing out chargers they like, here's my current favourite: https://satechi.net/products/75w-dual-type-c-pd-travel-charg...

It's fantastic for travel. It can charge my laptop (USB-C), Apple Watch + iPhone (USB-A) and power bank (USB-C) all at the same time. It also has a detachable AC cable so you can swap it before you leave instead of carrying an international plug adapter.

Re: The next generation of wall chargers

#183
post #143

One of my minor goals for 2020 is to switch all the gear I carry around to being USB-C PD. I've been doing some research on the subject, so just thought I'd throw my 2 cents in (some of this stuff mentioned in other comments). There's a pretty good site, https://www.chargerlab.com/ (see also: https://twitter.com/chargerlab ) that's dedicated to reviewing charging peripherals. I started off the year with an Innergie 6…

I have a bunch of USB-C devices - two laptops, a Switch, a phone, and a pair of headphones. The only one that I regularly charge from a USB-C PD port is the larger laptop. The rest do just fine with USB-A to USB-C cables from a four-port (one PD plus three USB-A) adapter. Occasionally I'll pull out my Atom and corresponding cable to charge another one of those devices more quickly, but that's actually pretty rare and I never need more PD ports than that. Never, and I travel more than most. I wish more people knew that A-to-C cables are a totally sufficient, cheaper, and more compact alternative for many devices.

Re: The next generation of wall chargers

#184

Not seeing UL or CSA approval numbers on those. That's important for switching power supplies, especially small ones. A switching power supply is always a few milliseconds from being a short circuit across the input. And FETs fail in the ON state. That's why those things are inherently fire risks and need protection circuitry. Really tiny ones make it worse; if they fail, there's not much space to dissipate heat befo…

Consider that this article is from January 30, 2019. There have been a lot of improvements in this space in the past 11 months.

Can you point to newer products that reflect these improvements?

Re: The next generation of wall chargers

#185

Not seeing UL or CSA approval numbers on those. That's important for switching power supplies, especially small ones. A switching power supply is always a few milliseconds from being a short circuit across the input. And FETs fail in the ON state. That's why those things are inherently fire risks and need protection circuitry. Really tiny ones make it worse; if they fail, there's not much space to dissipate heat befo…

Counterfeit UL tags are commonly used on counterfeit products.

Sure, having a UL tags doesn't guarantee that it has been UL certified, but missing one guarantee that it hasn't been UL certified.

Re: The next generation of wall chargers

#186
post #53

When I got a new laptop this summer I researched what chargers were out there, as I was fed up with carrying the normal assortment of cables and chargers. I settled for another GaN charger - the Innergie Powergear 60c[0] which is a very decent size for 60w and not having a mains lead built into it (still very common on non-mac chargers) makes it a lot more compact. I travel a lot, often with more than one laptop, so…

I'd love to replace my MacBook Pro's power brick with a small wall charger.

But I'd want a long (10 feet) USB cable for those places where the outlet isn't near where I sit, and it doesn't look like that exists yet. All the ones I find on Amazon are 3A, and the MacBook Pro apparently needs 4.3A.

Anyone know of one?

Re: The next generation of wall chargers

#189
post #185

Earlier quoted context omitted.

Counterfeit UL tags are commonly used on counterfeit products.

Sure, having a UL tags doesn't guarantee that it has been UL certified, but missing one guarantee that it hasn't been UL certified.

Plus its free to make an account and search the UL database[1]. I work in the fire industry and I have to prove to customers all the time that the UL stamp on devices and datasheets is actually backed up with proper documentation.

[1] https://iq.ulprospector.com/en/

Re: The next generation of wall chargers

#190

Earlier quoted context omitted.

I've never understood why that is important? Incorrectly wired outlets do occur even in the US, so it seems like it's safer to take that possibility into account and just design the whole system to allow them to be interchanged (e.g. make power switches open/close both lines)

> I've never understood why that is important? On appliances with a physical on-off switch, it's best to have the switch as close as possible to the cable, and on the 'hot' side. If there's a fault (wire touching the metal case) then the appliance is still safe with the switch 'off'. Nowadays, I think everything would have double-pole switches anyway.

My experience of North American market consumer products is that they rarely have double-pole switches. A second pole would cost an extra half cent.
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