Soldering might look like a tempting and cheap alternative when building or repairing a battery pack, but the heat of the iron could damage the cell, and the resulting connection won’t be as good as a ...

So, what do you do when your Arduino project needs to operate in a remote area or as a portable device? There are LiPo battery shields available, and although they may work well, recharging requires ...

The Arduino based capacity tester of true battery power is capable of measuring almost any type of rechargeable or non-rechargeable batteries by fully discharging the battery with known current and ...

Denis Hennessy recently encountered a problem we've all faced: he needed some AAs for a battery-eating gizmo, and he was overwhelmed by the choices available. Ignoring the shiny packaging and its ...

This Arduino code manages two solar power batteries, switching between them based on ambient light conditions detected by a photocell. It uses two relays to control the power to each battery and ...

Trying to figure out the capacity left in a battery based on only its voltage is difficult. The equivalent-series-resistance (ESR) of the battery makes the cell’s voltage a function of the current ...

The hardware tinkerers and prototype mavens out there will invariably have stumbled across the Arduino platform. Completely open source and always pushing the limits for collaboration, there are a ton ...

You have to admire the team from an Italian university who have managed to make a wholly edible rechargeable battery. Although its output is never going to run your phone, the cell is properly ...

Soon, you could make everything in your life smartphone-app-controllable—or at least the things that have wires. A California-based inventor has taken to Kickstarter to fund the launch of the latest ...