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Making your own lithium-ion batteries
You can make your own lithium-ion batteries if you have a source for individual cells and a control board to match your desired voltage levels. [Bill Porter] put together a quick tutorial where he...
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The ins and outs of Lithium-based battery packs
So, you’ve got your awesome project built and are ready to take it on the go, but how are you going to power it? You could use a couple alkaline cells or perhaps swipe a Litihium battery pack from...
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Replace your project power supplies with recycled Li-Ion cells and a...
[Dr. Iguana's] experience moving from projects powered by disposable Alkaline cells and linear regulators to recycled Lithium Ion cells using the buck regulators seen above might serve as an...
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Maxim App Note Reuses Lithium Ion Cells — Plus Extras
Now we don’t sit around reading application notes for fun. But if hard pressed we would have to admit that we do read quite a few of them even if the concepts aren’t currently on our project list....
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A Lithium Ion Supercapacitor Battery
Lithium ion supercapacitors. No, not lithium ion batteries, and yes, they’re a real thing. While they’re astonishingly expensive per Farad, they are extremely small and used as the first line of...
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Repurposed Laptop Batteries With a Twist
Lithium ion batteries are becoming more and more common these days, but some of the larger capacity batteries can still carry a pretty hefty price tag. After finding Acer’s motherboard schematics...
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An Obsessively Thorough Battery (and more) Showdown
There are a number of resources scattered across the Internet that provide detailed breakdowns of common products, such as batteries, but we haven’t seen anything quite as impressive as this site....
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Tesla Model S Battery Teardown
Tesla Motors club user [wk057], a Tesla model S owner himself, wants to build an awesome solar storage system. He’s purchased a battery pack from a salvaged Tesla Model S, and is tearing it down....
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A Li-ion Battery Charging Guide
Although [pinomelean's] Lithium-ion battery guide sounds like the topic is a bit specific, you’ll find a number of rechargeable battery basics discussed at length. Don’t know what a C-rate is? Pfffft....
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Game Boy with Lithium Batteries and USB
[Alan] procured a few Game Boys from a Yahoo auction with the intent of using them for some other projects, but one of the Game Boys was shipped with a very corroded battery which had eaten up one of...
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Field Expedient Stick Welder from Cordless Tool Battery Packs
The self-proclaimed and actual “smartest idiot on YouTube” is back with another entry from the “don’t try this at home” file. [AvE] recently did a teardown of a new DeWalt cordless drill-driver, and...
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Tiny PIC Clock is Not a Tiny Bomb
It’s been a few weeks since the incident where Ahmed Mohamed, a student, had one of his inventions mistaken for a bomb by his school and the police, despite the device clearly being a clock. We asked...
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Prototype Sodium Ion Batteries in 18650 Cells
French researchers have announced a prototype of an 18650 sodium-ion battery. If you’ve bought a powerful LED flashlight, a rechargeable battery pack, or a–ahem–stronger than usual LASER pointer,...
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Nanotech Makes Safer Lithium Batteries
Lithium-ion batteries typically contain two electrodes and an electrolyte. Shorting or overcharging the battery makes it generate heat. If the temperature reaches about 300 degrees Fahrenheit (150...
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Safely Creating A Li-Ion Pack From Phone Cells
[Glen], at Maker Space Newcastle Upon Tyne, is refreshingly honest. As he puts it, he’s too cheap to buy a proper battery. He needed a 1AH battery pack to power his quadcopter controller and FPV...
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Semisolid Lithium Ion Batteries Promise Better Cars, Solar
Lithium-ion batteries make possible smaller and lighter electronics. Unfortunately, they are also costly to produce. In a conventional lithium-ion battery, many thin layers create the finished product...
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Ugly DIY Portable Soldering Iron
If you’ve ever wanted a battery-operated soldering iron and you just can’t stand the thought of buying one, you might check out the video below from [Just5mins]. In it, he takes a candy tube, some...
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Tour de Force Battery Hacking
Lithium-Ion batteries are finicky little beasts. They can’t be overcharged, overdischarged, overheated, or even looked at funny without bursting into flames. Inside any laptop battery pack, a battery...
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Engage Tinfoil Hat: Samsung Note 7 Battery Theory
For the most part I believe things are as they seem. But every once in a while I begin to look at notable technology happenings from a different angle. What if things are not like they seem? This is...
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This Electric Longboard Collapses for Air Travel
How do you manage to get an electric off-road longboard past TSA and onto an international flight? Simple — make it a collapsible longboard that fits into a carry-on bag. The mechanical and electrical...
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