The flashlight shown above is designed to accept an 18650 lithium battery. ... In the video, I'm actually powering the Arduino as well as the motors, and I'm surprised it works.

As you might think, the $3 (plus shipping) shield comes without a 18650 Li-Ion battery. Since I’ve an old 1S (3.7V/2500mAh) Li-Ion battery in hand, I inserted it correctly into the battery compartment ...

You can salvage lithium 18650 cells from all sorts of modern gadgets, ... Posted in Arduino Hacks, classic hacks Tagged arduino, battery tester, rc. Search. Search for: Never miss a hack ...

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.

If your battery salvaging operation is too large for a single-cell tester, perhaps it’s time to upgrade to this 40-slot wall mounted unit. Posted in Battery Hacks , Tool Hacks Tagged 18650 ...

What do you do if even the smallest Arduino boards (or their clones) are too big for your homebrew project? If you're Johan Kanflo, you find a way to make them even smaller. His AAduino project ...

The EnergyShield Arduino rechargeable battery has been created by Nightshade Electronics and has three main internal functions including a circuit to boost the battery’s nominal voltage of 3.7V ...

Behind the delightfully punny name, you'll find an Arduino-compatible board the size of an AA battery. The hardware tinkerers and prototype mavens out there will invariably have stumbled across ...

Born from Johan Kanflo's mind, the AAduino, so named because of its size, can, almost, conveniently fit inside a 3x AA battery holder for maximum space footprint efficiency. Advertisement ...

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 ...

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