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10 votes
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Industrial-scale thermal storage unit in Pornainen, southern Finland, will be the world's biggest sand battery when it comes online within a couple of years
23 votes -
Subaru cars phone home to 3G cellular network that no longer exists - drains battery
59 votes -
Scientists make breakthrough discovery while experimenting with urine
21 votes -
Scottish company Gravitricity is using the Pyhäjärvi mine in Finland to build its first full-scale prototype gravity energy store
14 votes -
Battery life of AAA batteries that come with the original products seem unusually long
Hey folks of tildes, I wanted to see if anyone has similar experiences as mine and if they know the reason for this. I've purchased a few items which came with AAA battery pre-installed...
Hey folks of tildes,
I wanted to see if anyone has similar experiences as mine and if they know the reason for this. I've purchased a few items which came with AAA battery pre-installed (Chromecast from Google, Weighing scale from Xiaomi). These batteries lasted for an incredibly long time, Chromecast lasted over 1.5 years and Xiaomi's scale lasted for a similar time. Any third party battery I've purchased (Energizer, Duracell, Panasonic, Eveready and few others which I can't recall) last for a couple months at best.
I've now switched to rechargeable batteries, to reduce the waste I was creating. Still, I was really curious if anyone has a similar experience, and if they know the reason for it.
28 votes -
Recommendations on portable power stations
After one too many blackouts for the past few years, we're in the market for a backup power solution. Guidelines include: Would rather have multiple smaller units than one large one. Should be...
After one too many blackouts for the past few years, we're in the market for a backup power solution.
Guidelines include:
- Would rather have multiple smaller units than one large one.
- Should be enough to charge phones, watch a television, run the Keurig. If it can spike up enough to run a heater or keep the fridge from spoiling, that's a bonus.
- Would like to keep it at ~$300 a unit.
We're looking into a whole home generac as well, but this is more of a bandaid trial solution for now.
23 votes -
Electric vehicles: can 'lightweighting' combat range anxiety?
24 votes -
A tiny radioactive battery could keep your future phone running for fifty years
22 votes -
New material allows for better hydrogen-based batteries and fuel cells
17 votes -
Is it realistic to operate a fleet of electric buses in countries like Norway? Tackling challenges with the range of buses being shorter in cold weather.
8 votes -
Giant batteries drain economics of gas power plants
19 votes -
Sweden's Northvolt says new lithium-free sodium-ion battery is cheaper, more sustainable and doesn't rely on scarce raw materials
49 votes -
The next power plant is on the roof and in the basement
11 votes -
Honda says making cheap electric vehicles is too hard, ends deal with GM
31 votes -
Toyota inks deal to mass produce solid state EV batteries with 932-mile range
46 votes -
Vermont utility plans to end outages by giving customers batteries
14 votes -
Ford 'pausing' construction of Marshall EV battery plant
20 votes -
iPhone 15 and iPhone 15 Pro rumored to feature big boost in battery sizes
16 votes -
As Hurricane Idalia caused flooding, some electric vehicles exposed to saltwater caught fire
14 votes -
iPhone 14, 14 Pro owners complain about battery capacity that’s already falling off
36 votes -
The indigenous groups fighting against the quest for 'white gold' in South America
11 votes -
Project car diaries: Tweaking my 1969 Dodge Charger’s balance with a battery relocation
7 votes -
Saltwater batteries. A large scale environmentaly friendly energy storage solution?
10 votes -
Cool it! Eco-friendly ice cream trucks are here to serve
3 votes -
How a World War II submarine works
6 votes -
Austin Vernon on electric vehicles > hybrids
3 votes -
Heat waves expose electric car batteries to risk of damage
14 votes -
A massive seventy billion tonne underground deposit of high-grade phosphate rock has been discovered in Norway
16 votes -
The Framework Laptop 16-inch gets extra external snap-on batteries
31 votes -
A Tesla owner says he was locked out of his EV after its 12-volt battery died amid the Texas heat
38 votes -
Can EV batteries be recycled? It’s complicated, but it’s already happening
8 votes -
John Goodenough, part of Nobel trio in lithium battery hunt, dies at 100
12 votes -
The EU’s fight for user-replaceable smartphone batteries
50 votes -
Anker’s new Solix home solar battery system is a modular version of Tesla’s Powerwall
12 votes -
Hurtigruten Norway's new cruise ship design includes batteries and retractable sails equipped with solar panels
8 votes -
Chinese EV maker NIO has opened its first European "Power Swap Station" in Denmark – drivers can stop to replace their battery with a fully charged one
13 votes -
Australia is quitting coal in record time thanks to Tesla
5 votes -
How many battery-operated devices do you have in your home?
A student asked me this question today. They were looking into lithium batteries and e-waste and whatnot. My initial response was something low, like maybe five or six, but the more I thought...
A student asked me this question today. They were looking into lithium batteries and e-waste and whatnot.
My initial response was something low, like maybe five or six, but the more I thought about it, the higher the number kept climbing — old phones, key fobs, wireless mice, flashlights, a food thermometer, etc.
I’m not sure I have an official count yet, but the number is WAY higher than my gut reaction. I also thought it was an interesting thought experiment, so I figured I’d ask here to prompt people to do their own inventory.
How many battery-operated devices do you have in your home? (They don’t have to specifically be lithium batteries, but if you want to limit it to just that, feel free).
16 votes -
eBikes face safety hurdles
7 votes -
As demand for electric vehicles soars, Stora Enso in Finland has hired engineers to look into the possibility of using lignin, a polymer found in trees, to make batteries
6 votes -
As e-bike fires rise, calls grow for education and regulation
10 votes -
With bi-directional charging, the Volvo EX90 basically works as a power bank, allowing the battery to store electricity that can later be transferred back into an owner's home
4 votes -
A new way of storing renewable energy is providing clean heat – the Vatajankoski power plant is home to the world's first commercial-scale sand battery
5 votes -
Heart Aerospace's current project is a thirty-passenger plane designed to have a fully battery-powered range of 200 kilometres
4 votes -
How a Swedish company's technology is powering electric ferries – Echandia is manufacturing heavy duty energy storage systems
5 votes -
Will we run out of lithium?
2 votes -
Gadget graveyard: We found the hidden death dates on popular devices
7 votes -
Climate change: 'Sand battery' could solve green energy's big problem
11 votes -
This algae battery can power a computer for months
8 votes