Collaborate Disseminate
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
Cheap uninterruptable power supply (UPS) boards that take Li-ion cells of some description seem to have cropped up everywhere the past years. Finding use in applications such as keeping single-board …read more Continue reading Upgrading a Cheap LX-2BUPS UPS Board To Fix Fatal Flaws
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
Many readers will have at some time or another built their own lithium-ion battery packs, whether they are using tiny cells or the huge ones found in automotive packs. A …read more Continue reading A 48 Volt Battery Pack With Carefully Balanced Cells
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
When it comes to portable power, lithium-ion batteries are where it’s at. Unsurprisingly, there’s a lot of work being done to better understand how to maximize battery life and usable …read more Continue reading Researchers Find “Inert” Components in Batteries Lead to Cell Self-Discharge
When it comes to cordless power tools, color is an important brand selection criterion. There’s Milwaukee red, for the rich people, the black and yellow of DeWalt, and Makita has …read more Continue reading Ryobi Battery Hack Keeps CPAP Running Quietly
No matter the type of vehicle we drive, it has a battery. Those batteries wear out over time. Even high end EV’s have batteries with a finite life. But when …read more Continue reading Toddler EV Gets Big Boy Battery Upgrade
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
Lithium (from Greek lithos or stone) is a silvery-white alkali metal that is the lightest solid element. Just one atomic step up from Helium, this magic metal seems to be in everything these days. In addition to forming the backbone of many kinds of batteries, it also is used in …read more