The final law just makes replacing batteries more accessible (i.e. no glue or special screws), but it doesn't mandate battery packs. Also some devices like hearing aids are exempt.

I question whether battery packs would be a good thing to bring back now. USB power banks have 100% interchangeability among many device classes, which is something that not even dry cell batteries achieved. I can choose to leave the house with or without a power bank and just rent one in my city (YMMV). Modern charging wattages are high enough that I don't miss shutting down my Nexus, changing the pack, then rebooting.

It's tempting to say that this could be solved if battery sizes were standardized, but that would inevitably limit device dimensions. For example, I especially loathe how the 18650 has made almost all modern flashlights clunky. I would hate it if Apple pushes for a 4.5mm thick battery standard to kill all foldables because they don't want to enter the market and cannibalize their iPad demand.

I don't think this is where peak battery tech ends up. At current capacities, batteries are becoming genuinely dangerous, and faster charging only amplifies the risk. Charging high-capacity cells outside a temperature-controlled charger is risky, and even reputable chargers shouldn't be left unattended — many workplaces ban it outright (it only takes one fire to make that policy). Phone batteries are the worst of it: highest power density, fastest charging, odd geometry, and tight space constraints. Manufacturers shrink the phone by offloading temperature monitoring and heat dissipation onto the phone's own electronics and housing — so replaceable, externally rechargeable batteries are tricky to design. IMO, swappable batteries were a feature because batteries used to suck. In less volume-constrained devices like cameras, swappable batteries still work — but you're trading single-charge runtime for that convenience.

This last point is actually a real killer, an easily swappable battery in a phone probably sacrifices >10% "maximum" capacity in lost space. e.g a phone with a glued battery can have 5000mAh but the same phone with a more durable battery connector can only be 4500mAh.

The fact that pretty much no phones have a replaceable battery says something. And it doesn't mean that all manufacturers are somehow colluding with each. The market is very competitive and pretty much every manufacturer decided the trade offs are not worth the benefit. If Samsung or Xiaomi or Google could sell you a better phone with a replaceable battery, they would. But everyone came to the conclusion that the trade off is just not worth it. And now the EU, in its infinite wisdom has decided it knows whats best.

If it's such a superior product that people want despite the tradeoffs, why don't they just fund a company to create such a phone? Why doesn't anyone?

Separate battery modules can be subjected to obsolescence too, being hard pressed into finding a suitable replacement with similar specifications and which manufacturer that still makes them. I am on my 3rd Zenfone2 battery and it is definitely no longer in production..

and you can’t even find anyone who will fit them for the older models.

I'm quite certain you can find many companies in the far East who will produce cells of exactly the size and shape you want, as long as you're willing to order a minimum quantity. There are also a few semi-standard sizes of prismatic cells available.

That said, having a few truly standard sizes like we had with 1.2/1.5V and 9V batteries would be a good idea. BL-5C and its variants were a de-facto standard for many years too, and apparently are still available new.

Phones don't have removable batteries mostly because of the desire to make the device as thin as possible. The battery is just a delicate, flexible pouch that can easily be damaged and catch fire if removed from the phone and carried around. To make it safe, you'd need to add a hard shell, which would probably make the device 2 mm thicker or so.

As to why we want to make phones as thin as possible... I don't know, but I guess it makes them look futuristic, which helps with sales. The same goes for highly-reflective, glossy screens. I guess I'm not gonna cry if that gets regulated away.

Having a battery pack has its uses though. As crazy as USBC is, you can now get a relatively large amount of power from a battery pack.

There’s a bunch of things that don’t need their own battery if they just drew enough power off USBC. I have an office coffee setup. My grinder and espresso maker have their own batteries. But there’s no reason I couldn’t have a single battery pack and just plug both into USBC saving me a ton of weight. (In fact the Lagom Mini 2 grinder is powered straight off USBC with no internal power.)

For phones and cameras, that need their own power source, a replaceable battery is mostly just an end of life thing for me. Because I’d still have to carry a cable or spare battery around.

Quickswap batteries work for stateless devices.

A camera doesn't care if you take the battery out, except for that sub-second bit when it's saving the photo. Otherwise it doesn't notice you swapping the battery at all.

Modern phones are different because they are basically computers, and computers really don't like it when you just cut the power with no warning.

I cannot wait until I can carry a spare battery in my wallet again

There are benefits and downsides. Consumers and companies can make these decisions just fine.

> I can use 40+ year old cameras

Apple winces.

Some action cameras have replaceable batteries, some don't. I had a perfectly good Contour Roam 2 where the battery died and I still have a Contour Roam 3 with some low capacity battery.

With cameras you don't care about every mm of width, nor about how resistant it is to falls. With phones you do.

I, for one, don't welcome that change. I'd be ok with paying someone a bit extra to replace the battery. I mean, I'd be ok if I had a battery die in my phone in the last 10 years, which I don't remember it did.