Collaborate Disseminate
There are many rechargeable battery chemistries, each with their own advantages and disadvantages. Currently lithium-ion and similar (e.g. Li-Po) rule the roost due to their high energy density at least …read more Continue reading Improving Aluminium-Ion Batteries With Aluminium-Fluoride Salt
It’s no exaggeration to say that the development of cheap rechargeable lithium-ion batteries has changed the world. Enabling everything from smartphones to electric cars, their ability to pack an incredible …read more Continue reading OSHW Battery Tester Aims to Help Tame Lithium Cells
Ever want a seriously powerful PCB for charging a Li-Ion pack? Whatever you want it for, [Redherring32] has got it — it’s a board bearing the TPS25750D and BQ25713 chips, …read more Continue reading Need High-Power Li-Ion Charging? How About 100 W
For as much capacity lithium-ion batteries have, their useful lifespan is generally measured in the hundreds of cycles. This degradation is caused by the electrodes themselves degrading, including the graphite …read more Continue reading Why Pulse Current Charging Lithium-Ion Batteries Extends Their Useful Lifespan
We’re still in the early days of modern EV infrastructure, so minor issues can lead to a full high voltage pack replacement given the lack of high voltage-trained mechanics. [Ed’s …read more Continue reading Tearing into a Sparky Sandwich
It’s another one of those fun quirks about our increasingly cyberpunk world — instead of cigarette butts littering our streets, you’re more likely to find disposable vaporizers that have run …read more Continue reading Disposable Vape Batteries Turned USB Power Bank
There’s a good chance that if you build something which includes the ability to top up a lithium-ion battery, it’s going to involve the incredibly common TP4056 charger IC. Now, …read more Continue reading This Open Hardware Li-Ion Charger Skips the TP4056
An iPhone 8, now a relatively cheap model, can charge its battery fully in two hours’ time. There’s hardly ever a need for faster charging, but it’s fair to ask …read more Continue reading Just How Fast Could You Charge An iPhone?
A proper gun safe should be difficult to open, but critically, allow instant access by the authorized party.[Dr. Gerg] got a SnapSafe and discovered that, while it was quite easy …read more Continue reading Gun Safe Made Safer With Lithium Battery Upgrade
There’s a lot of magic in Lithium-ion batteries that we typically take for granted and don’t dig deeper into. Why is the typical full charge voltage 4.2 V and not …read more Continue reading Li-ion Battery Low-Level Intricacies Explained Excellently