Home Batteries Aren’t Just for Doomsday Preppers. Here’s Why You Might Want One
With electricity costs soaring, home batteries have never looked so attractive. Whether you want to store the excess generated by your solar panels or simply buy electricity at the cheapest possible rate to use later when power is most expensive, a home battery can help. It’s never been easier to get a home battery installed, but this rapidly expanding market can be confusing, and there are several things to consider before you buy.
I’ve spent months researching home batteries, chatting to folks who use them, and then having one installed myself, and I have tips for anyone interested in getting a home battery of their own.
Why Would You Want a Home Battery?
There are several reasons you might want to invest in a home battery, and they are not mutually exclusive:
You want to store excess power from your solar panels.
You want to live off-grid.
You want to guard against power outages.
You want to buy electricity at a cheap rate and store it for use later.
Home batteries are a win-win, potentially benefiting power companies too, because battery storage is an essential part of grid balancing and can help manage and make the most of the intermittent power generated by renewables (solar, wind, waves).
How Do Home Batteries Work?
Photograph: Simon Hill
A home battery is like a big power bank for your home. But rather than lithium-ion, they tend to be lithium iron phosphate (LFP or LiFePO4), because it is safer, more durable, and less prone to thermal runaway. In other words, less likely to overheat and burst into flames. There are a few manufacturers working with sodium-ion (Na-ion) batteries, which are potentially cheaper, more environmentally friendly (they don’t require lithium), and perform better in the cold, but they are also larger and don’t last as long.
Home battery technology is often the same as you’ll find in electric vehicles. Some folks have even suggested employing EV batteries as home batteries. But there are potential issues with that, not least finding your car battery drained in the morning. EVs are also driving the technology forward toward solid-state batteries, which are smaller for the same capacity, safer as they don’t have liquid electrolytes inside, and longer lasting.
Many home batteries come in modular systems, so you can add the capacity you want, but they require an inverter to convert the DC (direct current) power stored to AC (alternating current) power you can use. Folks with solar panels, or those who plan to add them in the future, should opt for a hybrid inverter, which can also convert the power from the panels for use or storage.
Inverters have different power ratings in kilowatts (kW) that dictate how much power you can draw at any given moment. Households with modest needs may get by with a 3.6-kW inverter, but that limits your continuous draw to 3.6 kW. They usually have a peak load capability that goes higher, enabling you to pull more for a brief period. If you have high-demand appliances like an EV charger or heat pump, you will want at least 5 kW, and folks with larger demands or larger batteries will want to go higher (6 to 10 kW).
What Should I Look For?
There are several things to watch out for when buying a home battery:
Capacity: Measured in kilowatt-hours (kWh), this tells you how much total energy the battery can hold.
Power output: Measured in kilowatts (kW), this shows how much energy the battery and inverter can deliver at any moment.
Depth of discharge: This is how much of the battery’s capacity you can safely use without damaging it.
Efficiency: This is the percentage of the power you put into the battery that you can actually use, because some energy is always lost in the storage process.
Warranty: This is a guarantee about the minimum performance you can expect before a battery degrades (they all degrade over time), and it’s often stated in years and charging cycles (whichever comes first). For example, EcoFlow promises at least 70 percent capacity after 15 years or 6,000 charging cycles.
How Much Home Battery Do You Need?
EcoFlow via Simon Hill
It can be tricky to calculate how much battery capacity you need, and it depends on your use case. If you want to guard against outages or live off-grid, you must consider how much power you use over time and also the sum of your maximum power usage at any given moment to ensure your capacity in kWh and output in kW are enough. If the output is not high enough you may not be able to run power-hungry appliances at the same time, so you’ll have to think about how you use your power.
For folks like me, simply looking to buy at a cheaper rate to use when power is more expensive, any capacity will benefit you. But if you have a cheap six-hour rate overnight, for example, then you ideally want it to last for the other 18 hours. It makes sense to get as much as you can up-front because the installation costs are high. Even adding to modular systems later often requires professional installation to avoid voiding your warranty.
Do You Need Upgrades or Permission?
The home battery will connect to your main electrical panel via a cable, and it may require some upgrades. There was no room on my fuse board when I got a home battery installed, so they had to install a second breaker box.
Some inverters may require permission from your electric distribution utility or local distribution company. Here in Scotland, the distribution network operator must approve your inverter, but you can install and then notify up to 3.6 kW, whereas larger inverters require prior approval.
With electricity costs soaring, home batteries have never looked so attractive. Whether you want to store the excess generated by your solar panels or simply buy electricity at the cheapest possible rate to use later when power is most expensive, a home battery can help. It’s never been easier to get a home battery installed, but this rapidly expanding market can be confusing, and there are several things to consider before you buy.
I’ve spent months researching home batteries, chatting to folks who use them, and then having one installed myself, and I have tips for anyone interested in getting a home battery of their own.
Why Would You Want a Home Battery?
There are several reasons you might want to invest in a home battery, and they are not mutually exclusive:
You want to store excess power from your solar panels.
You want to live off-grid.
You want to guard against power outages.
You want to buy electricity at a cheap rate and store it for use later.
Home batteries are a win-win, potentially benefiting power companies too, because battery storage is an essential part of grid balancing and can help manage and make the most of the intermittent power generated by renewables (solar, wind, waves).
How Do Home Batteries Work?
Photograph: Simon Hill
A home battery is like a big power bank for your home. But rather than lithium-ion, they tend to be lithium iron phosphate (LFP or LiFePO4), because it is safer, more durable, and less prone to thermal runaway. In other words, less likely to overheat and burst into flames. There are a few manufacturers working with sodium-ion (Na-ion) batteries, which are potentially cheaper, more environmentally friendly (they don’t require lithium), and perform better in the cold, but they are also larger and don’t last as long.
Home battery technology is often the same as you’ll find in electric vehicles. Some folks have even suggested employing EV batteries as home batteries. But there are potential issues with that, not least finding your car battery drained in the morning. EVs are also driving the technology forward toward solid-state batteries, which are smaller for the same capacity, safer as they don’t have liquid electrolytes inside, and longer lasting.
Many home batteries come in modular systems, so you can add the capacity you want, but they require an inverter to convert the DC (direct current) power stored to AC (alternating current) power you can use. Folks with solar panels, or those who plan to add them in the future, should opt for a hybrid inverter, which can also convert the power from the panels for use or storage.
Inverters have different power ratings in kilowatts (kW) that dictate how much power you can draw at any given moment. Households with modest needs may get by with a 3.6-kW inverter, but that limits your continuous draw to 3.6 kW. They usually have a peak load capability that goes higher, enabling you to pull more for a brief period. If you have high-demand appliances like an EV charger or heat pump, you will want at least 5 kW, and folks with larger demands or larger batteries will want to go higher (6 to 10 kW).
What Should I Look For?
There are several things to watch out for when buying a home battery:
Capacity: Measured in kilowatt-hours (kWh), this tells you how much total energy the battery can hold.
Power output: Measured in kilowatts (kW), this shows how much energy the battery and inverter can deliver at any moment.
Depth of discharge: This is how much of the battery’s capacity you can safely use without damaging it.
Efficiency: This is the percentage of the power you put into the battery that you can actually use, because some energy is always lost in the storage process.
Warranty: This is a guarantee about the minimum performance you can expect before a battery degrades (they all degrade over time), and it’s often stated in years and charging cycles (whichever comes first). For example, EcoFlow promises at least 70 percent capacity after 15 years or 6,000 charging cycles.
How Much Home Battery Do You Need?
EcoFlow via Simon Hill
It can be tricky to calculate how much battery capacity you need, and it depends on your use case. If you want to guard against outages or live off-grid, you must consider how much power you use over time and also the sum of your maximum power usage at any given moment to ensure your capacity in kWh and output in kW are enough. If the output is not high enough you may not be able to run power-hungry appliances at the same time, so you’ll have to think about how you use your power.
For folks like me, simply looking to buy at a cheaper rate to use when power is more expensive, any capacity will benefit you. But if you have a cheap six-hour rate overnight, for example, then you ideally want it to last for the other 18 hours. It makes sense to get as much as you can up-front because the installation costs are high. Even adding to modular systems later often requires professional installation to avoid voiding your warranty.
Do You Need Upgrades or Permission?
The home battery will connect to your main electrical panel via a cable, and it may require some upgrades. There was no room on my fuse board when I got a home battery installed, so they had to install a second breaker box.
Some inverters may require permission from your electric distribution utility or local distribution company. Here in Scotland, the distribution network operator must approve your inverter, but you can install and then notify up to 3.6 kW, whereas larger inverters require prior approval.
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#Home #Batteries #Arent #Doomsday #Preppers #Heres
There are plenty of AI tools available today, but very few let you compare the industry’s biggest names in one workspace. A one-time payment of $54.97 isn’t just a good price for ChatPlayground AI — it’s the lowest price anywhere for lifetime access.
That’s a big deal if you’ve been exploring AI tools and finding yourself buried under tabs and subscription fees.
Mashable Deals
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The platform supports 20+ AI models, including systems built by companies like OpenAI, Anthropic, Google, Meta, and others, including ChatGPT, Claude, Gemini, DeepSeek, Llama, Perplexity, and more. You can enter one prompt and instantly see how different models respond, which can be useful when you’re writing content, solving technical problems, or experimenting with prompts.
Beyond text prompts, ChatPlayground also supports image generation, coding workflows, and document analysis, including the ability to upload PDFs or images for context-aware responses. It also includes tools designed for people who regularly work with AI, such as prompt engineering tools, saved chat history, and conversation management.
For anyone who’s tired of bouncing between AI platforms all day —and paying for each of them separately — consolidating those tools into a single workspace can make working much smoother.
Mashable Deals
By signing up, you agree to receive recurring automated SMS marketing messages from Mashable Deals at the number provided. Msg and data rates may apply. Up to 2 messages/day. Reply STOP to opt out, HELP for help. Consent is not a condition of purchase. See our Privacy Policy and Terms of Use.
There are plenty of AI tools available today, but very few let you compare the industry’s biggest names in one workspace. A one-time payment of $54.97 isn’t just a good price for ChatPlayground AI — it’s the lowest price anywhere for lifetime access.
That’s a big deal if you’ve been exploring AI tools and finding yourself buried under tabs and subscription fees.
Mashable Deals
By signing up, you agree to receive recurring automated SMS marketing messages from Mashable Deals at the number provided. Msg and data rates may apply. Up to 2 messages/day. Reply STOP to opt out, HELP for help. Consent is not a condition of purchase. See our Privacy Policy and Terms of Use.
The platform supports 20+ AI models, including systems built by companies like OpenAI, Anthropic, Google, Meta, and others, including ChatGPT, Claude, Gemini, DeepSeek, Llama, Perplexity, and more. You can enter one prompt and instantly see how different models respond, which can be useful when you’re writing content, solving technical problems, or experimenting with prompts.
Beyond text prompts, ChatPlayground also supports image generation, coding workflows, and document analysis, including the ability to upload PDFs or images for context-aware responses. It also includes tools designed for people who regularly work with AI, such as prompt engineering tools, saved chat history, and conversation management.
For anyone who’s tired of bouncing between AI platforms all day —and paying for each of them separately — consolidating those tools into a single workspace can make working much smoother.
Mashable Deals
By signing up, you agree to receive recurring automated SMS marketing messages from Mashable Deals at the number provided. Msg and data rates may apply. Up to 2 messages/day. Reply STOP to opt out, HELP for help. Consent is not a condition of purchase. See our Privacy Policy and Terms of Use.
There are plenty of AI tools available today, but very few let you compare the industry’s biggest names in one workspace. A one-time payment of $54.97 isn’t just a good price for ChatPlayground AI — it’s the lowest price anywhere for lifetime access.
That’s a big deal if you’ve been exploring AI tools and finding yourself buried under tabs and subscription fees.
Mashable Deals
By signing up, you agree to receive recurring automated SMS marketing messages from Mashable Deals at the number provided. Msg and data rates may apply. Up to 2 messages/day. Reply STOP to opt out, HELP for help. Consent is not a condition of purchase. See our Privacy Policy and Terms of Use.
The platform supports 20+ AI models, including systems built by companies like OpenAI, Anthropic, Google, Meta, and others, including ChatGPT, Claude, Gemini, DeepSeek, Llama, Perplexity, and more. You can enter one prompt and instantly see how different models respond, which can be useful when you’re writing content, solving technical problems, or experimenting with prompts.
Beyond text prompts, ChatPlayground also supports image generation, coding workflows, and document analysis, including the ability to upload PDFs or images for context-aware responses. It also includes tools designed for people who regularly work with AI, such as prompt engineering tools, saved chat history, and conversation management.
For anyone who’s tired of bouncing between AI platforms all day —and paying for each of them separately — consolidating those tools into a single workspace can make working much smoother.
Mashable Deals
By signing up, you agree to receive recurring automated SMS marketing messages from Mashable Deals at the number provided. Msg and data rates may apply. Up to 2 messages/day. Reply STOP to opt out, HELP for help. Consent is not a condition of purchase. See our Privacy Policy and Terms of Use.
We were working on a successor but with memory prices where they are right now, we can’t build a phone that feels like a genuine step forward at a price that makes sense for CMF. As a result, we’ve decided not to launch a new CMF phone this year.
Last week, Nothing CEO and co-founder Carl Pei also said the RAM shortage has impacted the cost of the company’s mid-range phone, stating, “For Phone 4A, memory costs doubled between when we decided to build the device and when it launched. They’ve doubled again since.” According to Pei, “memory is now the most expensive component in a smartphone.” Nothing is far from the only company facing RAM pricing challenges — earlier this week, Tim Cook announced Apple will be raising prices, saying “the situation has become unsustainable.”
While there won’t be a new CMF phone this year, Evangelidis added in his post that CMF still has “several new products launching as well as some entirely new categories.” He also hinted that “the smartphone launch season at Nothing isn’t over yet.”
We were working on a successor but with memory prices where they are right now, we can’t build a phone that feels like a genuine step forward at a price that makes sense for CMF. As a result, we’ve decided not to launch a new CMF phone this year.
Last week, Nothing CEO and co-founder Carl Pei also said the RAM shortage has impacted the cost of the company’s mid-range phone, stating, “For Phone 4A, memory costs doubled between when we decided to build the device and when it launched. They’ve doubled again since.” According to Pei, “memory is now the most expensive component in a smartphone.” Nothing is far from the only company facing RAM pricing challenges — earlier this week, Tim Cook announced Apple will be raising prices, saying “the situation has become unsustainable.”
While there won’t be a new CMF phone this year, Evangelidis added in his post that CMF still has “several new products launching as well as some entirely new categories.” He also hinted that “the smartphone launch season at Nothing isn’t over yet.”
#cancels #years #CMF #phone #due #RAM #pricesGadgets,Mobile,News,Phones,Tech">Nothing cancels this year’s CMF phone due to RAM prices
Nothing’s next budget phone is the latest victim of RAMageddon. As 9to5Google reports, Nothing co-founder Akis Evangelidis announced in a post on X that a follow-up to the CMF Phone 2 Pro won’t be coming this year:
We were working on a successor but with memory prices where they are right now, we can’t build a phone that feels like a genuine step forward at a price that makes sense for CMF. As a result, we’ve decided not to launch a new CMF phone this year.
Last week, Nothing CEO and co-founder Carl Pei also said the RAM shortage has impacted the cost of the company’s mid-range phone, stating, “For Phone 4A, memory costs doubled between when we decided to build the device and when it launched. They’ve doubled again since.” According to Pei, “memory is now the most expensive component in a smartphone.” Nothing is far from the only company facing RAM pricing challenges — earlier this week, Tim Cook announced Apple will be raising prices, saying “the situation has become unsustainable.”
While there won’t be a new CMF phone this year, Evangelidis added in his post that CMF still has “several new products launching as well as some entirely new categories.” He also hinted that “the smartphone launch season at Nothing isn’t over yet.”
This lines up well with the rise of physical AI, and it’s part of why the Paris-based startup was able to raise a $5 million round led by Lightspeed, which has also backed Anthropic and Mistral AI. “Physical AI is only as good as the underlying systems running it,” the American VC firm wrote in a LinkedIn post announcing its investment.
Kyber’s potential applications go well beyond AI, though. Kempf told TechCrunch the platform is built for “all the use cases where the person who’s operating is not in the same place as the compute, which is not in the same place as the action.”
Remote control is one half of the equation; speed is the other — and it’s what inspired the startup’s name, a nod to the lightsaber crystals in Star Wars. “If you control things in the real world, every millisecond matters,” Kempf said.
Kyber’s approach to eliminating lag is rooted firmly in video-streaming technology. The company started as a side project Kempf built while CTO at cloud gaming startup Shadow, and its early focus on streaming makes the VLC connection an easy one to draw. But IoT expertise matters just as much for optimization — tuning performance to a device’s available compute, at scale — the other core piece of what Kyber does.
Kempf says other companies with the resources and the need have already built similar software for their own use cases, like remote driving. “But the largest fleets today have maybe 2,000 or 3,000 vehicles. Imagine you need to manage millions of them; that’s not the same thing.”
That jump in scale also raises the stakes on observability — knowing systems are actually working will matter even more when AI agents, not people, are managing entire fleets and networks. Even at much smaller scale, though, there’s a real benefit: not needing to physically reach every device just to push a software update, for example.
That range — from a handful of devices to millions — means Kyber’s user base will likely span far more companies than will ever become paying customers. True to Kempf’s roots, the core project is open source, while the company sells a productized version to enterprise customers. And it’s not just software: like Palantir and others, Kyber also offers hands-on, custom deployment through forward-deployed engineers, or FDEs.
FDEs make up a large part of Kyber’s team, which currently numbers 25 full-time staffers. The startup is headquartered in Paris but has offices in San Francisco and Singapore to support what it expects will be a global client base across a variety of industries. The company says it is already in commercial deployment with customers in defense, telco, robotics, and AI.
To focus its efforts, Kyber has been prioritizing three segments: robotics, drones of every kind, and remote IT access, where demand has been particularly strong. In that last segment, Kempf says Kyber aspires to be more than just a Citrix challenger — but even that comparison alone points to a sizable total addressable market.
Remote IT access isn’t exactly glamorous, but Kempf seems energized by the problem — and Kyber’s careers page hints at why: “The companies that tried to solve it spent years and tens of millions building custom solutions they’ll never share. We’re building the version everyone else can use.”
When you purchase through links in our articles, we may earn a small commission. This doesn’t affect our editorial independence.
This lines up well with the rise of physical AI, and it’s part of why the Paris-based startup was able to raise a $5 million round led by Lightspeed, which has also backed Anthropic and Mistral AI. “Physical AI is only as good as the underlying systems running it,” the American VC firm wrote in a LinkedIn post announcing its investment.
Kyber’s potential applications go well beyond AI, though. Kempf told TechCrunch the platform is built for “all the use cases where the person who’s operating is not in the same place as the compute, which is not in the same place as the action.”
Remote control is one half of the equation; speed is the other — and it’s what inspired the startup’s name, a nod to the lightsaber crystals in Star Wars. “If you control things in the real world, every millisecond matters,” Kempf said.
Kyber’s approach to eliminating lag is rooted firmly in video-streaming technology. The company started as a side project Kempf built while CTO at cloud gaming startup Shadow, and its early focus on streaming makes the VLC connection an easy one to draw. But IoT expertise matters just as much for optimization — tuning performance to a device’s available compute, at scale — the other core piece of what Kyber does.
Kempf says other companies with the resources and the need have already built similar software for their own use cases, like remote driving. “But the largest fleets today have maybe 2,000 or 3,000 vehicles. Imagine you need to manage millions of them; that’s not the same thing.”
That jump in scale also raises the stakes on observability — knowing systems are actually working will matter even more when AI agents, not people, are managing entire fleets and networks. Even at much smaller scale, though, there’s a real benefit: not needing to physically reach every device just to push a software update, for example.
That range — from a handful of devices to millions — means Kyber’s user base will likely span far more companies than will ever become paying customers. True to Kempf’s roots, the core project is open source, while the company sells a productized version to enterprise customers. And it’s not just software: like Palantir and others, Kyber also offers hands-on, custom deployment through forward-deployed engineers, or FDEs.
FDEs make up a large part of Kyber’s team, which currently numbers 25 full-time staffers. The startup is headquartered in Paris but has offices in San Francisco and Singapore to support what it expects will be a global client base across a variety of industries. The company says it is already in commercial deployment with customers in defense, telco, robotics, and AI.
To focus its efforts, Kyber has been prioritizing three segments: robotics, drones of every kind, and remote IT access, where demand has been particularly strong. In that last segment, Kempf says Kyber aspires to be more than just a Citrix challenger — but even that comparison alone points to a sizable total addressable market.
Remote IT access isn’t exactly glamorous, but Kempf seems energized by the problem — and Kyber’s careers page hints at why: “The companies that tried to solve it spent years and tens of millions building custom solutions they’ll never share. We’re building the version everyone else can use.”
When you purchase through links in our articles, we may earn a small commission. This doesn’t affect our editorial independence.
#free #video #player #run #smoothly #hes #robots #TechCrunchIoT,Kyber,open source software,physical ai,VLC">He made your free video player run smoothly. Now he’s doing that for robots. | TechCrunch
You’ve probably used VLC Media Player, the free video player with the orange traffic-cone icon — it’s been downloaded more than 6 billion times. But according to its lead developer, Jean-Baptiste Kempf, robots will soon be almost as ubiquitous as his open source video software.
Convinced that “hundreds of millions of robots and drones” will be roaming the streets in a few years, this French serial entrepreneur and open-source legend has been building Kyber, an infrastructure layer for controlling remote devices in real time. Its core software is an SDK that synchronizes video, audio, sensor data, and control inputs with minimal latency.
This lines up well with the rise of physical AI, and it’s part of why the Paris-based startup was able to raise a $5 million round led by Lightspeed, which has also backed Anthropic and Mistral AI. “Physical AI is only as good as the underlying systems running it,” the American VC firm wrote in a LinkedIn post announcing its investment.
Kyber’s potential applications go well beyond AI, though. Kempf told TechCrunch the platform is built for “all the use cases where the person who’s operating is not in the same place as the compute, which is not in the same place as the action.”
Remote control is one half of the equation; speed is the other — and it’s what inspired the startup’s name, a nod to the lightsaber crystals in Star Wars. “If you control things in the real world, every millisecond matters,” Kempf said.
Kyber’s approach to eliminating lag is rooted firmly in video-streaming technology. The company started as a side project Kempf built while CTO at cloud gaming startup Shadow, and its early focus on streaming makes the VLC connection an easy one to draw. But IoT expertise matters just as much for optimization — tuning performance to a device’s available compute, at scale — the other core piece of what Kyber does.
Kempf says other companies with the resources and the need have already built similar software for their own use cases, like remote driving. “But the largest fleets today have maybe 2,000 or 3,000 vehicles. Imagine you need to manage millions of them; that’s not the same thing.”
That jump in scale also raises the stakes on observability — knowing systems are actually working will matter even more when AI agents, not people, are managing entire fleets and networks. Even at much smaller scale, though, there’s a real benefit: not needing to physically reach every device just to push a software update, for example.
That range — from a handful of devices to millions — means Kyber’s user base will likely span far more companies than will ever become paying customers. True to Kempf’s roots, the core project is open source, while the company sells a productized version to enterprise customers. And it’s not just software: like Palantir and others, Kyber also offers hands-on, custom deployment through forward-deployed engineers, or FDEs.
FDEs make up a large part of Kyber’s team, which currently numbers 25 full-time staffers. The startup is headquartered in Paris but has offices in San Francisco and Singapore to support what it expects will be a global client base across a variety of industries. The company says it is already in commercial deployment with customers in defense, telco, robotics, and AI.
To focus its efforts, Kyber has been prioritizing three segments: robotics, drones of every kind, and remote IT access, where demand has been particularly strong. In that last segment, Kempf says Kyber aspires to be more than just a Citrix challenger — but even that comparison alone points to a sizable total addressable market.
Remote IT access isn’t exactly glamorous, but Kempf seems energized by the problem — and Kyber’s careers page hints at why: “The companies that tried to solve it spent years and tens of millions building custom solutions they’ll never share. We’re building the version everyone else can use.”
When you purchase through links in our articles, we may earn a small commission. This doesn’t affect our editorial independence.
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