Philips Xenium X520 can run on an AAA battery?
Philips’ is quite a well known electrical brand although maybe not within the mobile phone arena, except for perhaps making good mobile phones with long-lasting battery life.
There is now a new candy-bar mobile phone from Philips called the Xenium X520, and the thing about the Philips Xenium X520 is that it can use standard AAA batteries for back-up power.
That doesn’t mean of course you can just use AAA batteries rather than its normal battery, but if you do happen to run out of charge just pop in a standard AAA battery and it will give you up to 2.5 hours talk time and a week’s standby time.
Source — justamp