I made this amazing battery pack using 18650 cells, performing about 3X better than a LiPo battery of roughly the same weight ...

Maglite’s used(?) to be the king of flashlights, but replacing those pesky D-cell batteries is kind of ridiculous in this day and age. So [Travis] decided to upgrade it to make use of the ...

Figure 2 Figure 2) On the right we have the capacity change data for a Samsung INR18650-35E Battery [2] and on the right the change in capacity of HPQ and Novacium Gen 1 18650 industrial battery [1].

I salvaged a large batch of 18650 cells from old laptop batteries and needed a way to figure out which ones were still worth ...

The vast majority of our portable electronic gadgets, and the new wave of electric transportation, are powered by lithium batteries. Texas-based startup Group1 has developed a more sustainable ...

If you've owned a laptop for a few years, you've no doubt encountered the problem that the battery eventually loses its ability to hold a charge. Generally what happens is that one or more of the ...

Chicago-headquartered NanoGraf Technologies, which claims it has enabled the highest energy-density cylindrical 18650 Lithium-ion cell in the world, today announced that its battery has achieved a new ...

Recently I bought a few portable power supply devices to run my little microcontroller projects. There are countless variants of portable power supply devices that can be used to power up most ...