A battery pack with 2 18650’s in parallel would seem to be almost perfect for older flashlights, regardless of it they’re Maglites. I already have an 18650 charger. Report comment.

In a noteworthy advancement, Group1 has launched the world’s first Potassium-ion battery that has been designed within the widely utilized 18650 cylindrical form factor. “We are excited to ...

I made this amazing battery pack using 18650 cells, performing about 3X better than a LiPo battery of roughly the same weight and size. So instead of flying for 15 min, now you can fly for 45 min.

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 ...

The 18650-format potassium-ion battery was launched at the 14th annual Beyond Lithium Conference at the Oak Ridge National Laboratory in Tennessee. Group1.

Rather than rebuild a battery pack, I'm going to discuss a couple of options for re-using the individual 18650 cells. I recently disassembled a dead pack and set about determining which cells were ...

Tesla’s battery supplier Panasonic is considering switching 18650 battery cell production lines, which currently supply cells for Tesla’s Model S and Model X, to 2170 cell production ...

Last month, the CPSC published a warning to its website asking buyers not to purchase 18650 lithium-ion battery cells. The items, which are often found in small devices like vape pens and ...

For the first time ever, a battery has been developed using sodium ions rather than lithium ions in the industry standard "18650" format used in laptop batteries, LED flashlights and the Tesla ...