Fitbit recalls smartwatches with batteries that can overheat and burn the user : NPR



The health tracker firm Fitbit is recalling about 1.7 million smartwatches containing a lithium-ion battery that may overheat and burn the person.

The recall is for the Fitbit Ionic Smartwatch; not one of the firm’s different smartwatches or trackers are affected. Fitbit bought about 1 million Ionic Smartwatches within the U.S. and one other 693,000 internationally, in response to the Shopper Product Security Fee.

“The well being and security of Fitbit customers is our highest precedence. We’re taking this motion out of an abundance of warning for our customers,” the corporate stated in a press release.

Clients are being urged to cease utilizing their Ionic Smartwatches and return them to Fitbit for a refund. The corporate can also be providing clients a reduction on different Fitbit merchandise.

The recall was issued Wednesday following a slew of stories of the watch battery overheating, together with at the least 115 incidents within the U.S. and one other 59 internationally.

There have been 78 stories of burn accidents within the U.S. – two involving third-degree burns and 4 involving second-degree burns – in addition to 40 burn accidents globally.

Fitbit stated it performed a “thorough investigation” and located that harmful overheating occurred in “very restricted situations.”

The smartwatches had been bought in shops resembling Finest Purchase, Kohl’s and Goal, in addition to on-line from September 2017 by way of December 2021. Fitbit stopped producing the Ionic in 2020.

Ionic Smartwatches have 3 buttons, a coloured LCD display screen, and the mannequin quantity FB503 on the again.

Process could help manufacturers make batteries more efficient — ScienceDaily


Because the world lessens its dependence on fossil fuels, industries and producers are turning to lithium-ion batteries to energy the machines that make trendy life potential. These batteries energy electrical automobiles, cell phones, drones, vacuum cleansing robots and different machines and shall be an integral part to the power transition.

However there’s an issue with lithium-ion batteries: as they age and are charged, they develop dendrites. A analysis staff from the College of Houston is making an attempt to unravel the dendrite drawback by investigating how these buildings develop on batteries. Dendrites are spiky buildings that accumulate on the batteries’ anodes. These buildings scale back the lifetime of the batteries, hinder their means to carry a cost and may short-circuit machines doubtlessly inflicting security hazards like battery fires.

“By understanding how dendrites develop on batteries, we will establish chemical and bodily options to stop the expansion of dendrites, which is important to develop the following era of batteries,” stated Xiaonan Shan, assistant professor {of electrical} and laptop engineering at UH’s Cullen Faculty of Engineering.

Shan and his staff have developed a “novel in-situ” 3D microscopy to picture and research the localized electrochemical environments and perceive the place dendrites begin forming in batteries. Utilizing the 3D microscope, small cameras and different laptop imaging know-how, Shan and his staff had been capable of geometrically map out how a battery initially develops dendrites.

The findings had been just lately printed within the journal Superior Vitality Supplies.

“That is important as a result of most battery researchers historically use electrochemical measurements to measure your entire floor or inside battery, so they do not know what occurs contained in the battery,” stated Shan, who’s a corresponding writer on the paper. Electrical and laptop engineering graduate scholar Guangxia Feng is the lead writer. Most battery corporations deal with the supplies a part of growing batteries, so new supplies emphasize efficiency, he added.

“With this course of, producers can theoretically make higher performing batteries by specializing in the structural design of batteries that daunts the expansion of dendrites,” Shan famous. “And within the subsequent step, we’ll use this system to design extremely environment friendly Zn (zinc-carbon) batteries.”

Authors becoming a member of Shan and Feng on the paper are Jiaming Guo, Yaping Shi, Xiaoliang, Xu Yang and David Mayerich, all the UH Division of Electrical and Pc Engineering; and Huajun Tian, Zho Li and Yang Yang, College of Central Florida.

Story Supply:

Supplies offered by College of Houston. Authentic written by Karn Dhingra. Notice: Content material could also be edited for type and size.

17 Best Samsung Galaxy S22 Cases and Accessories (2022): Chargers, Cables, Batteries


I’ve examined a number of different instances. These are a number of extra I did not like as a lot as those above. Additionally, instances are very private equipment; you would possibly like one which I do not. That is what this hodgepodge is for. 

Gear4 Copenhagen Case for $40: I really actually like how this case appears. It has a pleasant textured again, is made with 52 p.c renewable assets, and is partly manufactured from recycled plastics. It is slim and has raised lips, however I want there have been a little bit of a bumper over the digital camera module. It feels uncovered. You too can get it for the S22 Extremely. I like Gear4’s Denali case too, although the grooves on the again would possibly appeal to plenty of mud.

OtterBox Commuter Collection Antimicrobial Case for $40: This dual-layer case has a detachable smooth interior cowl and a tough outer shell to soak up drops and shield your telephone. The buttons are clicky, the charging port is roofed, and it is manufactured from 35 p.c recycled supplies. There’s nothing notably incorrect with it; I simply do not like the way it appears all that a lot. Undoubtedly go for one of many colourful choices although. It is also obtainable for the S22 Extremely and S22+.

UAG Civilian Collection for $50: UAG despatched me a ton of its S22 instances, however I feel they’re all … ugly (sorry). If you are going to cowl your costly and fairly telephone up, attempt to make the case look good! Of the few that regarded OK, the Civilian feels sturdy and protecting, with clicky buttons and raised edges across the display. It is also obtainable for the S22 Extremely and S22+.

Speck Presidio Excellent-Clear Case for $40: Simply need a no-frills clear case? This Speck will do the trick. The buttons aren’t the clickiest, however the bumper is inflexible and it feels strong. Simply know there is not a lot safety for the lenses. You too can get it for the S22 Extremely and S22+.