Korean designers have proposed a rechargeable 1.5V battery in a memory foam case that could squeeze down from D to AAA-sized.

To understand why batteries come in many different sizes and shapes – and serve many purposes – look to the past, at how batteries originated and how they have developed over the years.

The first six British patients have been implanted with a wireless pacemaker - smaller than an AAA battery - set to revolutionise treatment of heart disease.

Home batteries can help keep the lights on when the power goes out, but you'll need to find the right size battery for your home.

She was just seven days old when she had a pacemaker the size of a AAA battery fitted –and now 19 months later little Esmé Byrne is thriving. Doctors had to put the tiny device into her stomach ...

Batteries remain an essential part of using many devices. We've got all the best Cyber Week battery deals lined up here.

New low-profile clips for AAA and N batteries are a good fit for high-density applications. They feature a "flow-through" surface-mount solder tail for increasing joint strength ...

These are primarily non-rechargeable alkaline batteries that have been used for decades. The standardized cell sizes are AAAA, AAA, AA, C and D, as well as button and coin cells and many others.

To understand why batteries come in many different sizes and shapes – and serve many purposes – look to the past, at how batteries originated and how they have developed over the years.

To understand why batteries come in many different sizes and shapes – and serve many purposes – look to the past, at how batteries originated and how they have developed over the years.

I'm a professor who studies batteries and electrochemistry . To understand why batteries come in many different sizes and shapes – and serve many purposes – look to the past, at how batteries ...