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 ...

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 ...

Power is courtesy of a 3-cell lithium-polymer battery. The chassis, legs, and joints are all 3D-printed, and rather attractively in complimentary colors, ... At its heart is an Arduino UNO, ...

Seeing this Toshiba motor drive, my first thought was ‘what a neat chip for pairing with an Arduino’ as it combines operation across 1.8 to 7V with up to 4A drive – so that is Li-ion batteries, 5V USB ...