I take a Canon Power Shot SX20 IS on holidays and bike touring. I chose this camera for the 12 megapixels and 20X optical zoom. But most of all, I like it because it uses 4 AA batteries. I can take re-chargable or disposable batteries. No worries about re-charging because batteries are available anywhere. I get 2 weeks of battery life while on vacation using standard alkaline batteries. Lithium batteries have much longer life. I haven't used a set up while on vacation so I don't know how long they last with daily use.