The Energizer XP3000A Portable Charger is retailing for S$59.90. It has a capacity of 3,000 mAh which is able to charge your iPhone 5 about two times before needing a recharge and it weighs 130g.
What makes the XP3000A special is the built-in lightning cable. This means you do not need to bring along another cable if you are using it with your iPhone 5.
If you have an Android phone as well as an iPhone 5, the XP3000A also comes with another USB port as well, but you have to bring along your own micro USB cable. Alternatively, you can get the Energizer XP3000M which has a built-in micro USB cable instead of a lightning cable. Both The Energizer XP3000A and XP3000M are available in two colors, black or white.
What I don’t like about the XP3000A is that the maximum output is only 1A instead of the standard 2.1A which you will see on most portable battery chargers these days. If the output is 1A, it will increase the charging time of your phone by about 2 times (when compared with 2.1A) and you will not able to use it to charge an iPad.
The consolation prize is that you can charge two devices at one time. I tried charging my iPhone 5 and my HTC One at the same time and it works fine as both ports are able to output 1A each.
In the packaging, there is this thing call Gecko. It is basically a small rubber pad with suction cups on both side for you to stick your phone against the XP3000A (that explains why the surface of the XP3000A is glossy/fingerprint magnet).