These 3V coin cell batteries have a slightly higher capacity than most at 240mAh, meaning they may last a little longer than others available.

They are 20x3.2mm and are to be used in conjuction with the eTextiles range of coin cell holders and LEDs.

Coin cells batteries are very dangerous if swallowed, please keep out away from small children and seek immediate medical intervention if required.  Batteries can only be shipped within the UK.