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Everything with a battery should have an off switch

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Re: Everything with a battery should have an off switch

#561

Earlier quoted context omitted.

We switched to buying USB-rechargeable AA/AAA lithium ion batteries. The brand we buy is Pale Blue, but there are many other brands. These batteries have a regular form factor, with an added micro USB (and USB C on some larger battery sizes) port for recharging. They work really well for us and charge quickly (and conveniently — everything has a USB socket nowadays). The price may seem expensive, but after 10 or so c…

I wouldn't recommend this personally, having had bad experiences with poor charge circuitry in integrated chargers like these (in my case it was in a 18650 battery). Get a good charger (e.g. eneloop), and then you can get generic rechargeable batteries incredibly inexpensively for it, without risking poor charge management causing overheating or battery failure.

The same little charger circuit built into the batteries also converts the lithium battery chemistry voltage to 1.5v making them a drop in replacement for AA and AA batteries.

Or are you saying you can get 1.5V lithium rechargables that work with an external charger?

Re: Everything with a battery should have an off switch

#562

Earlier quoted context omitted.

We switched to buying USB-rechargeable AA/AAA lithium ion batteries. The brand we buy is Pale Blue, but there are many other brands. These batteries have a regular form factor, with an added micro USB (and USB C on some larger battery sizes) port for recharging. They work really well for us and charge quickly (and conveniently — everything has a USB socket nowadays). The price may seem expensive, but after 10 or so c…

Why use those instead of 'normal' rechargeables? Invest in a battery charger once and each battery will be cheaper. The only USB chargeable ones I use are 9-volt batteries, those are awkward and I dont want to replace my charger

"normal" ones are usual NiMH which put out 1.25v. Standard alkaline batteries put out 1.5v.

Some devices care about the difference.

The tiny electronics that allows the lithium battery chemistry to be charged via microUSB also converts the 3.?v output to 1.5v.

Re: Everything with a battery should have an off switch

#563
post #4

Examples lying around in my house: Bathroom scale: lovely it powers up when you tap it, but eats up 2 button cells a year for a few dozen uses a year Kitchen scales, bit more use, at least once a day but again 2 button cells a year electronic caliper: Same, eats up 1 button cell a year, just sitting in my toolbox Strangely enough none of our kids toys with batteries seem to suffer from this problem How much extra cos…

You are thinking too big. The "power supply" is probably produced by some china factory they order it from

Factory A: Charges 7c per unit with a power switch.

Factory B: Charges 3c per unit with no power switch.

Wanna play the which choice did the C-Suite make game?

Re: Everything with a battery should have an off switch

#564
post #358

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You've posted this "fun fact"? 4 times already. Are you this bored?

Just something I care a lot about.

It is disruptive to have pronoun activists such as yourself wandering in and derailing the conversation.

Please find a more useful hobby than this worthless language policing.

Re: Everything with a battery should have an off switch

#565

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> I've lost track of the number of times I've lamented "did anyone actually use this?" We have a combination oven and microwave (yes...) that seems to have been designed with the primary purpose of enraging the owner. The microwave can only be set in 15 second increments. But you can fine-tune it, in five-second increments, by spinning a dial. Except that you can't do that while the oven is on. The microwave makes a…

> The microwave can only be set in 15 second increments. But you can fine-tune it, in five-second increments, by spinning a dial Mine is similar, also a combi. You spin the dial and it will go up in 10 second increments to a point, then in minutes, then in 5 minutes, then ten minutes, etc. Fine, I get it, it's like floating point. But it starts doing 5 minutes at the 10 minute mark! So you can't do 11-14 minutes. Whi…

> Mine is similar, also a combi.

> I do like it though because it's much more efficient for small things than a big oven and I don't have space for a toaster oven and a microwave.

You may have gotten the wrong idea. This isn't a combination where the same box functions as an oven and a microwave. This is a microwave that is for no reason physically attached to a separate oven - it takes up all the space of a big oven plus a normally sized microwave. The only thing they share is the display panel. And yet that didn't stop anyone from disabling microwave functionality while the oven is on.

There is absolutely no advantage to this compared to having an oven and a separate microwave, and many, many, many disadvantages. It continually boggles my mind that anyone ever designed, manufactured, or purchased this thing.

Re: Everything with a battery should have an off switch

#566

Cars. Cars are ubiquitous. They are everywhere. We all relate to them without thinking. Cars run on batteries. Even IC runs various systems using battery power when parked. But do cars have an off switch? To turn them truly off, such as when storing for a long period, the procedure is take a wrench and physically disconnect the 12v battery. So I disagree with the author. At least some battery-powered products are doi…

Can we add pacemakers to this list too? A bad lurch could kill someone...

Re: Everything with a battery should have an off switch

#567

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Its just anecdotal, I definitely sleep better the further I'm away from cell phones, cell towers and pulsed wifi routers. I've got a meter and I've used emf shielding clothes prior to addressing my bedroom. Its pretty hard to do decent studies on it since its so prevalent. Prone to quackery and people making quick bucks on it too.

You should check out better call Saul, main character is a lawyer who has a brother who lives with debilitating emf sensitivity, he is the only one who believes him though. They go really in depth about it for like 2 seasons

Am a fan. I can't imagine suffering it that bad. For me it's just a few bad nights in a row that wear me out if I'm not careful.

Re: Everything with a battery should have an off switch

#568
post #387

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The reason I said what foone wants and doesn't want is precisely that they can not control what others do. Yes, you can disregard all that, follow them on twitter and angrily chastise them for not sticking to cool tech projects and tell them to use a proper blogging platform, but I was providing this information based on the expectation that most people reading it would not want to be intentionally rude. If the only…

My point is that when Foone posts are shared here, someone always follows up with The Official Rules for Interacting With Foone. Others neither expect nor get such treatment. What's different about Foone?

Most of the other people who get their tweets shared on HN don't vocally hate HN as much? They're also usually men, so there's no need to clarify pronouns.

Re: Everything with a battery should have an off switch

#569
post #314

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I was listing things where I would not want an off-switch along with the reasons. As you rightly mentioned yourself having an off-switch on a smoke detector is a very bad idea. The only place where smoke detectors are frequently switched off are remote huts that might be empty for the better part of a year. And there the best strategy is to unmount the whole thing, pull the battery out and place both things somewhere…

> having an off-switch on a smoke detector is a very bad idea Not at all! You might reconsider your opinion when one of these things goes off at night for no reason and you find out its battery isn't removable.

Most firealarms I know have a button that switches of the activated sound when longpressed. I also do not know smoke detectors without removable battery (outside of wired ones).

A deactivation button is different from an power switch where the thing is off when the switch is in the wrong position. And if you don't notice people die. I didn't check the ISO norms on smoke detectors but I would be surprised if power switches wouldn't be explicitly forbidden in those norms.

And sure you can get a detector that doesn't conform to the norm, but then the insurance won't pay in case of a fire.

Re: Everything with a battery should have an off switch

#570
>Buys lowest common denominator/cheapest product >"oh no this product is really bad and the features don't make sense"

Alright buddy. There are plenty of devices I have without an off switch that work perfectly fine. In terms of controllers, the Xbox controllers I have will go to sleep after not having been used for a little while and conserve battery that way.

The problem isn't lack of off switches, it's the lack of features related to the lack of an off switch.

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