Relying on easy-to-find AA batteries, the A20 is also incredibly energy-efficient, so you'll never run out of juice while shooting your vacation. And for economy-minded users, the optional rechargeable NiMH batteries guarantee the power you need at a savings you will appreciate. Never say die! The PowerShot A20 is never short on power, accepting AA-size alkaline batteries that you can find anywhere in the world. For economy-minded users, the optional AA NiMH Battery Set NB4-100 and the Battery and Charger Kit CBK-100 are the perfect tools for keeping your included AA NiMH batteries fully juiced so you never miss a shot. In addition, a new LED backlight and an energy-efficient digital signal processing IC consume far less power than previous designs. The PowerShot A20 can capture up to 500 images using alkaline batteries or even an incredible 1000 images with NiMH batteries.