Coin cell or "button" batteries are small, shiny, and feel tingly on the tongue. If you're a toddler, that puts them into the category of "belongs in my mouth". But a swallowed button battery can begin burning a hole through a kid's oesophagus in hours, causing pain, severe injury, and sometimes complications leading to death.

Love them or hate them, batteries power everything you hold dear, or at least everything inside your phone. You might have a brand new iPhone with a fully charged battery or a dying iPhone 6, whose battery is so degraded it requires a replacement from Apple (at least it's discounted). Sure, all batteries degrade eventually, but you can take some preventative steps to keep them in good health for as long as possible.

Yes, like every other product in the universe, IKEA has its own brand of rechargeable NiMH batteries. At $10 for a four-pack, they're worth considering if you're in the market, particularly when compared to Panasonic's more expensive $30 Eneloops. But aren't the Eneloops better? Time to find out.

Apple's upcoming iOS 11.3 update is bringing a few improvements to its augmented reality software, some new animoji, and, luckily, more granular control over your iPhone's performance. You'll be able to choose for yourself whether or not you want to decrease the performance of your iPhone for the sake of boosting your battery life, overriding Apple's previous and controversial decision to slow down iPhones with degraded batteries, all without the user's knowledge.

It’s just over one month since the Hornsdale power reserve was officially opened in South Australia. The excitement surrounding the project has generated acres of media interest, both locally and abroad.

The aspect that has generated the most interest is the battery’s rapid response time in smoothing out several major energy outages that have occurred since it was installed. Indeed, the battery is outperforming expectations - and the model is set to be emulated in Victoria.

As reported by Bloomberg, and again by Electrek, Tesla is in the running to build yet another of its giant battery Powerpacks, this time in an attempt to bolster Queensland's power station output.

In 2017, I went through more batteries than I care to admit. I bought batteries for my headphones, batteries for my TV remotes, batteries for my Xbox controller and for some reason, batteries for a portable radio that I don't even use. I usually go for the expensive stuff but do I have to?

Probably not.

You're already planning on changing the battery in the old iPhone you've got so it stops shutting down randomly, so why not do the same with your MacBook? Depending on how much you use your laptop, that battery could be ready for a change.

You can figure out the health of your battery yourself before deciding whether or not it needs to be replaced (or making an appointment at an Apple store) by digging into the system yourself, or consulting a third-party app for even more in-depth information.

Now that Apple's admitted to slowing down iPhones with degraded batteries, you're probably interested in figuring out whether your battery is losing its ability to hold a charge (and whether you should replace it). There are a few ways to do this, either with an app or by waiting a few weeks, when Apple says it will provide customers with more information about their batteries. Still curious in the interim? Here's what to do.

The iPhone X is finally here, and that means it's time for the first iPhone X teardown. As usual, iFixit is doing the honours, prying open Apple's new smartphone to see what's inside and how hard repairs will be.

We've all done it. Thrown ourselves onto the couch, phone in hand, determined to like only a few Instagram pictures of dogs in backpacks and inspirational calligraphy work. Three hours later, you realise you've done nothing but make yourself feel a little bit sadder (your calligraphy work is just fine, by the way). You're able to track the time you spend on your computer pretty easily thanks to a host of time management apps, but not many exist for your iPhone, mostly for security reasons.

Researchers at the University of Sydney just worked out how to solve one of the biggest problems standing in the way for zinc-air batteries to replace lithium-ion batteries as our go-to for modern electronics.

The Hydraulic Press Channel has lost some of its appeal over time, but it regains a little novelty when it crushes something that explodes. In a completely unsafe demonstration, the channel's purveyors compressed a battery pack with fiery results. (Reminder: Never puncture a battery.)

Apple's latest MacBook Pro refresh has its fair share of detractors and for good reason -- changes like the omission of traditional USB ports, incompatibility with Apple's own Lightning-only headphones, and the removal of the magnetic MagSafe connector have rankled longtime users, despite Apple executive Phil Schiller insisting the changes unveiled were "the future of the notebook."

Elon Musk’s plans for the coming decade are nothing short of ambitious. Among other things, Tesla‘s CEO has promised to dramatically increase car production, launch several completely new cars, and conquer self-driving vehicles by 2020. Here’s a closer look at what exactly Musk has promised Tesla will accomplish during the next few years.

As mobile phone users, all we want is enough battery life to last the day. Frustratingly, the older the device, the less power it seems to have. In fact, the amount of battery life our mobiles have on any given day depends on two key factors: how we use them on that particular day, and how we used them in the past.

No matter how you slice it, keeping some extra battery power on your person can do wonders to affect how you move through the world. If you'd like to take some concentrated electricity around for emergencies, you've got two options.

iOS: It used to be that when I went out late in the city, I'd play a rousing game of "How long can I keep my phone alive so I can listen to music on the way home?" I would throw my phone into aeroplane mode, turn the brightness down, and hope it would last until I made it back to my apartment.

Apple has since improved the way it handles battery life, though it doesn't do everything it could to ensure your phone stays on. There are a few more tricks of the trade you can use to keep your iPhone alive as long as possible. Here are nine foolproof options.

Last Friday, world-famous entrepreneur Elon Musk jetted into Adelaide to kick off Australia’s long-delayed battery revolution. The Tesla founder joined South Australian Premier Jay Weatherill and the international chief executive of French windfarm developer Neoen, Romain Desrousseaux, to announce what will be the world’s largest battery installation.

The battery tender won by Tesla was a key measure enacted by the South Australian government in response to the statewide blackout in September 2016, together with the construction of a 250 megawatt gas-fired power station.