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Kuxiu’s S3 MagSafe power bank is bigger and better and probably won’t explode

Kuxiu’s S3 MagSafe power bank is bigger and better and probably won’t explode

Kuxiu is back with a new S3 portable battery that addresses most of the issues I had during my review of the S2, aka the “world’s first” semi-solid state power bank. It also introduces a few new ones, while adding useful features like a kickstand and integrated USB-C cable.

As a reminder, these are not true “solid state power banks” despite the marketing hype. The 10,000mAh Kuxiu S3 uses the same solid-liquid mixed electrolyte found in the S2, making it less prone to thermal runaway than the all-liquid Lithium-ion batteries found in most power banks. Kuxiu says its unique semi-solid state chemistry also lasts twice as long, making it good for about 1,000 charging cycles before the battery capacity drops to 80 percent.

The S3 is more expensive to purchase than other 10,000mAh power banks, typically rated for 300-500 cycles. It lists for $149.98 but is frequently discounted, selling for less than $70 at the time of this writing. At that price, it should be cheaper to own over its longer lifetime.

While it’s easy to discount the safety claim — don’t. In September, Anker issued a recall of 481,000 power banks due to the risk of fire and explosion. And just last week, INIU recalled 210,000 power banks sold on Amazon that were implicated in 11 fires causing over $380,000 in property damage. It’s been a busy year for power bank recalls.

Safety aside, Kuxiu has also fitted the S3 with lots of useful upgrades. In addition to twice the battery capacity, you get a folding metal kickstand, digital display, and detachable USB-C cable that tucks into the perimeter when not in use. You also get faster 30W charging input and Qi2 output up to 25W for devices that support the latest wireless charging standard.

It works with MagSafe-compatible charging cases.

The magnets are strong enough to keep this beefy power bank securely connected.

The display shows battery remaining and the charging state.

The integrated, flat USB-C cable can be completely detached if you need to use a longer cable.

On paper, this all sounds great — and it is — but that larger battery is heavy when used as a MagSafe charger, and it’s far less pocketable. At 106.9 x 71 x 22.15mm (4.20 × 2.79 × 0.87 inches) and a weight of 245.3g (8.65oz), the S3 adds considerable bulk and heft to my 187-gram / 6.6-ounce iPhone 15 Pro. Fortunately, the S3’s stronger array of 18 N52 magnets does a good job of holding everything together and properly aligned for charging.

To test the unit’s 10,000mAh (5,000mAh at 7.7V, or 38.5Wh) rated capacity, I plugged the S3’s integrated USB-C cable into a ChargerLAB POWER-Z C240 power meter, which then slotted into the USB-C jack on my iPhone 15 Pro. I was able to charge the iPhone from 0 to 100 percent once, and then again from 0 to 92 percent before the S3 power bank was empty. I measured 31.12Wh of useful output capacity for 80.83 percent efficiency from the DC/DC circuit, which is typical.

The flat, integrated USB-C cable that tucks into the S3’s perimeter is super useful. Power banks are getting all kinds of unnecessary features these days, but the value of having a cable always at the ready should not be underestimated. While the S3 can’t fully charge my MacBook Pro’s larger battery, it can provide a few extra hours of runtime. The maximum charging speed of the S3 is just 35W, however, which is on par with this class of batteries.

1/9

Charge Qi-compatible devices wirelessly at up to 25W.
Photo by Thomas Ricker / The Verge

Kuxiu still sells the more portable 5,000mAh S2, which is currently available for $49.99. The bigger S3 currently lists for $68.99 and offers double the battery capacity, a display showing percent remaining, more powerful wired and wireless charging, and the convenience of a kickstand and USB-C cable always available.

Compared to power banks sold by the likes of Anker, EcoFlow, and hundreds of alphabet-soup brands like, um, Kuxiu, the S2 and new S3 semi-solid-state chemistry should be safer and cheaper to own, making them very hard to beat if you’re currently in the market.

Photography by Thomas Ricker / The Verge

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Volvo’s compact, quirky EX30 had a lot of problems when it was first released. Tariffs essentially erased its affordability, making it more expensive to own, and a battery recall made it dangerous to park indoors. But its discontinuation didn’t spell the end of Volvo’s efforts to sell more affordable electric models. In fact, the Swedish automaker is already at work on a new offering for the US market.

The news of an affordable Volvo EV for the US came during a media roundtable this week related to the US launch of the new EX60. Luis Rezende, president of Volvo Cars America, said that the decision to discontinue the EX30 was not solely about tariffs and profitability, noting that the company is preparing to introduce a new EV in 2027 that will occupy a similar role in the lineup — though not necessarily at exactly the same price point as the EX30.

“Very similar, I would say,” Rezende said about the mystery EV’s price comparison to the EX30. “It’s going to be an EV that will deliver a lot of good things in a bigger space, but it will be also fun to drive, I can promise you.”

Other than that, details were scarce. Volvo’s executives talked later about the desire to build a larger, family-oriented SUV at its factory in Charleston, South Carolina — though that vehicle will likely use a “multi-fuel” strategy rather than being exclusively electric from launch.

The EX60, which will start customer deliveries in the US this summer, is Volvo’s attempt at a reset in the US. The compact SUV, which is built on a different architecture than the EX30, will start at $59,795 for the entry-level P6 Plus version, and climbs up to $68,745 for the more powerful P10 AWD Ultra variant.

Volvo is the latest automaker to try, and stumble, in its efforts to build an affordable EV for the US market that is both desirable and profitable for the company. To date, few have pulled it off, as it requires a certain level of scale, vertical integration, and mastery of the supply chain that only companies in China seem to have really nailed down. Of course, Volvo is owned by China’s Geely, but the company’s desire to sell EVs in North America will necessitate a different approach to affordability.

Affordability was one of the EX30’s main selling points. When it was first announced in 2023, Volvo said the price would start at $34,950, positioning it as the smaller, less expensive EV that many people were clamoring for. But after the election of Donald Trump, Volvo was forced to delay the EX30’s arrival in the US until 2025, citing newly leveled tariffs against vehicles built in China. Eventually, the model that went on sale in the US started at $44,900, about $10,000 more than the original price.

Then, in February, further bad news as Volvo issued a recall for the EX30 because the vehicles’ batteries were at risk of overheating or catching on fire. The next month, Volvo pulled the plug on the vehicle in the US.

Correction May 18th: A previous version of this story stated that the EX60 is the only Volvo EV in the US. The EX90 is also available.

Follow topics and authors from this story to see more like this in your personalized homepage feed and to receive email updates.
#Volvo #teases #affordable #replace #discontinued #EX30Cars,Electric Cars,News,Transportation,Volvo">Volvo teases a new affordable EV to replace discontinued EX30Volvo’s compact, quirky EX30 had a lot of problems when it was first released. Tariffs essentially erased its affordability, making it more expensive to own, and a battery recall made it dangerous to park indoors. But its discontinuation didn’t spell the end of Volvo’s efforts to sell more affordable electric models. In fact, the Swedish automaker is already at work on a new offering for the US market.The news of an affordable Volvo EV for the US came during a media roundtable this week related to the US launch of the new EX60. Luis Rezende, president of Volvo Cars America, said that the decision to discontinue the EX30 was not solely about tariffs and profitability, noting that the company is preparing to introduce a new EV in 2027 that will occupy a similar role in the lineup — though not necessarily at exactly the same price point as the EX30.“Very similar, I would say,” Rezende said about the mystery EV’s price comparison to the EX30. “It’s going to be an EV that will deliver a lot of good things in a bigger space, but it will be also fun to drive, I can promise you.”Other than that, details were scarce. Volvo’s executives talked later about the desire to build a larger, family-oriented SUV at its factory in Charleston, South Carolina — though that vehicle will likely use a “multi-fuel” strategy rather than being exclusively electric from launch.The EX60, which will start customer deliveries in the US this summer, is Volvo’s attempt at a reset in the US. The compact SUV, which is built on a different architecture than the EX30, will start at ,795 for the entry-level P6 Plus version, and climbs up to ,745 for the more powerful P10 AWD Ultra variant.Volvo is the latest automaker to try, and stumble, in its efforts to build an affordable EV for the US market that is both desirable and profitable for the company. To date, few have pulled it off, as it requires a certain level of scale, vertical integration, and mastery of the supply chain that only companies in China seem to have really nailed down. Of course, Volvo is owned by China’s Geely, but the company’s desire to sell EVs in North America will necessitate a different approach to affordability.Affordability was one of the EX30’s main selling points. When it was first announced in 2023, Volvo said the price would start at ,950, positioning it as the smaller, less expensive EV that many people were clamoring for. But after the election of Donald Trump, Volvo was forced to delay the EX30’s arrival in the US until 2025, citing newly leveled tariffs against vehicles built in China. Eventually, the model that went on sale in the US started at ,900, about ,000 more than the original price.Then, in February, further bad news as Volvo issued a recall for the EX30 because the vehicles’ batteries were at risk of overheating or catching on fire. The next month, Volvo pulled the plug on the vehicle in the US.Correction May 18th: A previous version of this story stated that the EX60 is the only Volvo EV in the US. The EX90 is also available. Follow topics and authors from this story to see more like this in your personalized homepage feed and to receive email updates.Andrew J. HawkinsCloseAndrew J. HawkinsPosts from this author will be added to your daily email digest and your homepage feed.FollowFollowSee All by Andrew J. HawkinsCarsCloseCarsPosts from this topic will be added to your daily email digest and your homepage feed.FollowFollowSee All CarsElectric CarsCloseElectric CarsPosts from this topic will be added to your daily email digest and your homepage feed.FollowFollowSee All Electric CarsNewsCloseNewsPosts from this topic will be added to your daily email digest and your homepage feed.FollowFollowSee All NewsTransportationCloseTransportationPosts from this topic will be added to your daily email digest and your homepage feed.FollowFollowSee All TransportationVolvoCloseVolvoPosts from this topic will be added to your daily email digest and your homepage feed.FollowFollowSee All Volvo#Volvo #teases #affordable #replace #discontinued #EX30Cars,Electric Cars,News,Transportation,Volvo

its discontinuation didn’t spell the end of Volvo’s efforts to sell more affordable electric models. In fact, the Swedish automaker is already at work on a new offering for the US market.

The news of an affordable Volvo EV for the US came during a media roundtable this week related to the US launch of the new EX60. Luis Rezende, president of Volvo Cars America, said that the decision to discontinue the EX30 was not solely about tariffs and profitability, noting that the company is preparing to introduce a new EV in 2027 that will occupy a similar role in the lineup — though not necessarily at exactly the same price point as the EX30.

“Very similar, I would say,” Rezende said about the mystery EV’s price comparison to the EX30. “It’s going to be an EV that will deliver a lot of good things in a bigger space, but it will be also fun to drive, I can promise you.”

Other than that, details were scarce. Volvo’s executives talked later about the desire to build a larger, family-oriented SUV at its factory in Charleston, South Carolina — though that vehicle will likely use a “multi-fuel” strategy rather than being exclusively electric from launch.

The EX60, which will start customer deliveries in the US this summer, is Volvo’s attempt at a reset in the US. The compact SUV, which is built on a different architecture than the EX30, will start at $59,795 for the entry-level P6 Plus version, and climbs up to $68,745 for the more powerful P10 AWD Ultra variant.

Volvo is the latest automaker to try, and stumble, in its efforts to build an affordable EV for the US market that is both desirable and profitable for the company. To date, few have pulled it off, as it requires a certain level of scale, vertical integration, and mastery of the supply chain that only companies in China seem to have really nailed down. Of course, Volvo is owned by China’s Geely, but the company’s desire to sell EVs in North America will necessitate a different approach to affordability.

Affordability was one of the EX30’s main selling points. When it was first announced in 2023, Volvo said the price would start at $34,950, positioning it as the smaller, less expensive EV that many people were clamoring for. But after the election of Donald Trump, Volvo was forced to delay the EX30’s arrival in the US until 2025, citing newly leveled tariffs against vehicles built in China. Eventually, the model that went on sale in the US started at $44,900, about $10,000 more than the original price.

Then, in February, further bad news as Volvo issued a recall for the EX30 because the vehicles’ batteries were at risk of overheating or catching on fire. The next month, Volvo pulled the plug on the vehicle in the US.

Correction May 18th: A previous version of this story stated that the EX60 is the only Volvo EV in the US. The EX90 is also available.

Follow topics and authors from this story to see more like this in your personalized homepage feed and to receive email updates.

#Volvo #teases #affordable #replace #discontinued #EX30Cars,Electric Cars,News,Transportation,Volvo">Volvo teases a new affordable EV to replace discontinued EX30

Volvo’s compact, quirky EX30 had a lot of problems when it was first released. Tariffs essentially erased its affordability, making it more expensive to own, and a battery recall made it dangerous to park indoors. But its discontinuation didn’t spell the end of Volvo’s efforts to sell more affordable electric models. In fact, the Swedish automaker is already at work on a new offering for the US market.

The news of an affordable Volvo EV for the US came during a media roundtable this week related to the US launch of the new EX60. Luis Rezende, president of Volvo Cars America, said that the decision to discontinue the EX30 was not solely about tariffs and profitability, noting that the company is preparing to introduce a new EV in 2027 that will occupy a similar role in the lineup — though not necessarily at exactly the same price point as the EX30.

“Very similar, I would say,” Rezende said about the mystery EV’s price comparison to the EX30. “It’s going to be an EV that will deliver a lot of good things in a bigger space, but it will be also fun to drive, I can promise you.”

Other than that, details were scarce. Volvo’s executives talked later about the desire to build a larger, family-oriented SUV at its factory in Charleston, South Carolina — though that vehicle will likely use a “multi-fuel” strategy rather than being exclusively electric from launch.

The EX60, which will start customer deliveries in the US this summer, is Volvo’s attempt at a reset in the US. The compact SUV, which is built on a different architecture than the EX30, will start at $59,795 for the entry-level P6 Plus version, and climbs up to $68,745 for the more powerful P10 AWD Ultra variant.

Volvo is the latest automaker to try, and stumble, in its efforts to build an affordable EV for the US market that is both desirable and profitable for the company. To date, few have pulled it off, as it requires a certain level of scale, vertical integration, and mastery of the supply chain that only companies in China seem to have really nailed down. Of course, Volvo is owned by China’s Geely, but the company’s desire to sell EVs in North America will necessitate a different approach to affordability.

Affordability was one of the EX30’s main selling points. When it was first announced in 2023, Volvo said the price would start at $34,950, positioning it as the smaller, less expensive EV that many people were clamoring for. But after the election of Donald Trump, Volvo was forced to delay the EX30’s arrival in the US until 2025, citing newly leveled tariffs against vehicles built in China. Eventually, the model that went on sale in the US started at $44,900, about $10,000 more than the original price.

Then, in February, further bad news as Volvo issued a recall for the EX30 because the vehicles’ batteries were at risk of overheating or catching on fire. The next month, Volvo pulled the plug on the vehicle in the US.

Correction May 18th: A previous version of this story stated that the EX60 is the only Volvo EV in the US. The EX90 is also available.

Follow topics and authors from this story to see more like this in your personalized homepage feed and to receive email updates.
#Volvo #teases #affordable #replace #discontinued #EX30Cars,Electric Cars,News,Transportation,Volvo
Anthropic announced Monday it has acquired Stainless, a startup founded by former Stripe engineer Alex Rattray whose software is widely used by rival AI labs, including OpenAI and Google.

Anthropic didn’t disclose terms of the deal. However, The Information reported last week that Anthropic was in talks to acquire Stainless, which is backed by Sequoia Capital and Andreessen Horowitz, for more than $300 million.

The acquisition will take a key infrastructure supplier out of the hands of Anthropic’s competitors. The company told TechCrunch it will wind down all hosted Stainless products, including its SDK generator. An Anthropic spokesperson said Stainless customers will still own the SDKs they’ve generated to date, and have full rights to modify and extend them however they wish.

The New York-based startup, founded in 2022, rose to prominence in the emerging AI industry for automating the creation and maintenance of software development kits, or SDKs — the libraries developers use to interact with APIs.

Rattray developed software that could take API specifications and turn them into production-ready SDKs across multiple programming languages, including Python, TypeScript, Kotlin, Go, and Java. It became a popular tool because the platform automatically updates the SDKs as APIs change and eliminated the time-consuming process of manually maintaining them.

The technology is particularly valuable to companies like Anthropic, OpenAI, Google, Replicate, Runway, and Cloudflare that are building AI agents that can connect to external software and complete tasks on behalf of users. Stainless’s SDK tools are an easy way to build and maintain those connections — but going forward, the tools will only be available to Anthropic, not its competitors.

According to Anthropic, Stainless software has powered the generation of every official Anthropic SDK since the earliest days of its API.

“I started Stainless because SDKs deserve as much care as the APIs they wrap,” Rattray said in a press release posted Monday. “Anthropic was one of the first teams to bet on this with us. We have been watching what developers have built on Claude over the last few years, which made bringing our teams together an easy decision. The team gets to keep doing the work we love, on the platform where it matters most.”

When you purchase through links in our articles, we may earn a small commission. This doesn’t affect our editorial independence.

#Anthropic #acquired #dev #tools #startup #OpenAI #Google #Cloudflare #TechCrunchAnthropic,Stainless">Anthropic has acquired the dev tools startup used by OpenAI, Google, and Cloudflare | TechCrunch
Anthropic announced Monday it has acquired Stainless, a startup founded by former Stripe engineer Alex Rattray whose software is widely used by rival AI labs, including OpenAI and Google.

Anthropic didn’t disclose terms of the deal. However, The Information reported last week that Anthropic was in talks to acquire Stainless, which is backed by Sequoia Capital and Andreessen Horowitz, for more than 0 million. 







The acquisition will take a key infrastructure supplier out of the hands of Anthropic’s competitors. The company told TechCrunch it will wind down all hosted Stainless products, including its SDK generator. An Anthropic spokesperson said Stainless customers will still own the SDKs they’ve generated to date, and have full rights to modify and extend them however they wish.

The New York-based startup, founded in 2022, rose to prominence in the emerging AI industry for automating the creation and maintenance of software development kits, or SDKs — the libraries developers use to interact with APIs.

Rattray developed software that could take API specifications and turn them into production-ready SDKs across multiple programming languages, including Python, TypeScript, Kotlin, Go, and Java. It became a popular tool because the platform automatically updates the SDKs as APIs change and eliminated the time-consuming process of manually maintaining them.

The technology is particularly valuable to companies like Anthropic, OpenAI, Google, Replicate, Runway, and Cloudflare that are building AI agents that can connect to external software and complete tasks on behalf of users. Stainless’s SDK tools are an easy way to build and maintain those connections — but going forward, the tools will only be available to Anthropic, not its competitors.

According to Anthropic, Stainless software has powered the generation of every official Anthropic SDK since the earliest days of its API.


“I started Stainless because SDKs deserve as much care as the APIs they wrap,” Rattray said in a press release posted Monday. “Anthropic was one of the first teams to bet on this with us. We have been watching what developers have built on Claude over the last few years, which made bringing our teams together an easy decision. The team gets to keep doing the work we love, on the platform where it matters most.”
When you purchase through links in our articles, we may earn a small commission. This doesn’t affect our editorial independence.#Anthropic #acquired #dev #tools #startup #OpenAI #Google #Cloudflare #TechCrunchAnthropic,Stainless

reported last week that Anthropic was in talks to acquire Stainless, which is backed by Sequoia Capital and Andreessen Horowitz, for more than $300 million.

The acquisition will take a key infrastructure supplier out of the hands of Anthropic’s competitors. The company told TechCrunch it will wind down all hosted Stainless products, including its SDK generator. An Anthropic spokesperson said Stainless customers will still own the SDKs they’ve generated to date, and have full rights to modify and extend them however they wish.

The New York-based startup, founded in 2022, rose to prominence in the emerging AI industry for automating the creation and maintenance of software development kits, or SDKs — the libraries developers use to interact with APIs.

Rattray developed software that could take API specifications and turn them into production-ready SDKs across multiple programming languages, including Python, TypeScript, Kotlin, Go, and Java. It became a popular tool because the platform automatically updates the SDKs as APIs change and eliminated the time-consuming process of manually maintaining them.

The technology is particularly valuable to companies like Anthropic, OpenAI, Google, Replicate, Runway, and Cloudflare that are building AI agents that can connect to external software and complete tasks on behalf of users. Stainless’s SDK tools are an easy way to build and maintain those connections — but going forward, the tools will only be available to Anthropic, not its competitors.

According to Anthropic, Stainless software has powered the generation of every official Anthropic SDK since the earliest days of its API.

“I started Stainless because SDKs deserve as much care as the APIs they wrap,” Rattray said in a press release posted Monday. “Anthropic was one of the first teams to bet on this with us. We have been watching what developers have built on Claude over the last few years, which made bringing our teams together an easy decision. The team gets to keep doing the work we love, on the platform where it matters most.”

When you purchase through links in our articles, we may earn a small commission. This doesn’t affect our editorial independence.

#Anthropic #acquired #dev #tools #startup #OpenAI #Google #Cloudflare #TechCrunchAnthropic,Stainless">Anthropic has acquired the dev tools startup used by OpenAI, Google, and Cloudflare | TechCrunch

Anthropic announced Monday it has acquired Stainless, a startup founded by former Stripe engineer Alex Rattray whose software is widely used by rival AI labs, including OpenAI and Google.

Anthropic didn’t disclose terms of the deal. However, The Information reported last week that Anthropic was in talks to acquire Stainless, which is backed by Sequoia Capital and Andreessen Horowitz, for more than $300 million.

The acquisition will take a key infrastructure supplier out of the hands of Anthropic’s competitors. The company told TechCrunch it will wind down all hosted Stainless products, including its SDK generator. An Anthropic spokesperson said Stainless customers will still own the SDKs they’ve generated to date, and have full rights to modify and extend them however they wish.

The New York-based startup, founded in 2022, rose to prominence in the emerging AI industry for automating the creation and maintenance of software development kits, or SDKs — the libraries developers use to interact with APIs.

Rattray developed software that could take API specifications and turn them into production-ready SDKs across multiple programming languages, including Python, TypeScript, Kotlin, Go, and Java. It became a popular tool because the platform automatically updates the SDKs as APIs change and eliminated the time-consuming process of manually maintaining them.

The technology is particularly valuable to companies like Anthropic, OpenAI, Google, Replicate, Runway, and Cloudflare that are building AI agents that can connect to external software and complete tasks on behalf of users. Stainless’s SDK tools are an easy way to build and maintain those connections — but going forward, the tools will only be available to Anthropic, not its competitors.

According to Anthropic, Stainless software has powered the generation of every official Anthropic SDK since the earliest days of its API.

“I started Stainless because SDKs deserve as much care as the APIs they wrap,” Rattray said in a press release posted Monday. “Anthropic was one of the first teams to bet on this with us. We have been watching what developers have built on Claude over the last few years, which made bringing our teams together an easy decision. The team gets to keep doing the work we love, on the platform where it matters most.”

When you purchase through links in our articles, we may earn a small commission. This doesn’t affect our editorial independence.

#Anthropic #acquired #dev #tools #startup #OpenAI #Google #Cloudflare #TechCrunchAnthropic,Stainless

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