Category Archives: battery

Choosing The Right Battery For Your Electric Vehicle Build

Many a hacker has looked at their scooter, bike, or skateboard, and decided that it would be even better if only it had a motor on it. Setting out to electrify one’s personal transport can be an exciting and productive journey, and one that promises to teach many lessons about …read more

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Posted in battery, electric vehicle, electric vehicles, Hackaday Columns, lithium polymer battery, transportation hacks | Leave a comment

Hackaday Links: December 15, 2019

When you’re right, you’re right. Back in January, we predicted that exoskeletons were about to break out as a mainstream product, and gave several examples of prototypes poised to become products. So it was with interest that we read about Sarcos Robotics and their new Guardian XO, a cyber suit …read more

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Posted in battery, Circuit Sculpture, e-scooter, exoskeleton, Extinction Rebellion, Hackaday Columns, Hackaday links, labview, lipo, maker faire, PLA, protest | Leave a comment

Lessons in Li-Ion Safety

If you came here from an internet search because your battery just blew up and you don’t know how to put out the fire, then use a regular fire extinguisher if it’s plugged in to an outlet, or a fire extinguisher or water if it is not plugged in. Get …read more

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Posted in battery, battery charging, battery monitor, battery pack, Chemistry, chemistry hacks, Engineering, Featured, fire safety, Interest, lithium, lithium battery, lithium cell, Lithium-ion battery, safety, workshop safety | Leave a comment

Protect Your Batteries Before You Wreck Your Batteries

[Jan] is solving a problem many of us have had, deeply discharging our project’s batteries and potentially damaging the cells.

His board can handle batteries from 6 to 34 volts and supports both LiPo or Lion batteries. The board can be flexible about its cut-off voltage. It also has a …read more

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Posted in battery, lion, lipo, protection, The Hackaday Prize, The Hackaday Prize 2019 | Leave a comment

Better Battery Management Through Chemistry

The lead-acid rechargeable battery is a not-quite-modern marvel. Super reliable and easy to use, charging it is just a matter of applying a fixed voltage to it and waiting a while; eventually the battery is charged and stays topped off, and that’s it. Their ease is countered by their size, …read more

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Posted in battery, battery analysis, battery life, battery technology, chemistry hacks, Engineering, Featured, lipo, lipo battery, lithium, lithium battery, lithium cell, lithium ion, lithium polymer, Lithium-ion battery, Original Art, science | Leave a comment

The Amazon Dash Button: A Retrospective

The Internet of Things will revolutionize everything! Manufacturing? Dog walking? Coffee bean refilling? Car driving? Food eating? Put a sensor in it! The marketing makes it pretty clear that there’s no part of our lives which isn’t enhanced with The Internet of Things. Why? Because with a simple sensor and …read more

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Posted in acoustic modem, amazon, amazon dash button, amazon dash hack, amazon dash wand, Amazon Echo, battery, bluetooth, Dash button, e-waste, Hackaday Columns, hardware, Microcontrollers, reverse engineering, teardown, wifi | Leave a comment

Electric Dump Truck Produces More Energy Than it Uses

Electric vehicles are everywhere now. It’s more than just Leafs, Teslas, and a wide variety of electric bikes. It’s also trains, busses, and in this case, gigantic dump trucks. This truck in particular is being put to work at a mine in Switzerland, and as a consequence of having an …read more

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Posted in battery, dump truck, electric, energy, mine, regenerative braking, transportation hacks, vehicle | Leave a comment

An All-Iron Battery Isn’t Light, But It’s Cheap

Rechargeable batteries are a technology that has been with us for well over a century, and which is undergoing a huge quantity of research into improved energy density for both mobile and alternative energy projects. But the commonly used chemistries all come with their own hazards, be they chemical contamination, …read more

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Posted in battery, cell, chemistry hacks, electrochemistry, iron, science | Leave a comment

PackProbe Reports Laptop Battery Health

The 18650 cell has become a ubiquitous standard in the lithium battery world. From power drills to early Tesla vehicles, these compact cells power all manner of portable devices. A particularly common use is in laptop batteries, where they’re often built into a pack using the Smart Battery System. This …read more

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Posted in batteries, battery, classic hacks, i2c, laptop batteries, laptop battery, smart battery system, SMBus | Leave a comment

Epsom Salts Restores Lead Acid Battery

Despite a lot of advances in battery technology, lead acid batteries are still used in many applications due to cost and their ability to provide a lot of surge current. But they don’t last forever. However, [AvE] shows that in some cases a failed battery can be restored with — of all things — epsom salts. If it makes you feel funny to use the stuff grandpa soaks in when he has a backache, you can call it magnesium sulfate.

You can find a complete explanation in the video below (which includes [AvE’s] very colorful language), but fundamentally, the magnesium …read more

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Posted in AvE, battery, chemistry hacks, epsom salt, epsom salts, lead acid battery | Leave a comment