A backup battery not too heavy and yet a large capacity.

This battery has a rather rectangular shape (14.2 cm long by 5.5 wide) but weighs only 230g which is not much. I would even say that for a capacity of 400mAh 10, weight is relatively light.
This battery makes the LED of the economy, we must admit, is only the usual gadget and illuminates nothing. What I like here is that the two are taken Ismart. Finally batteries, small, cheap, which allow. With 2 doors Ismart, this battery will recharge you in record time your devices whether your smartphone, your tablet or your camera since the battery intelligently adapts to the capacity of your device.
Here, both ports are 2A maximum load of what a tablet without worry and without unnecessary extension time.

Battery comes with a small carrying bag in which slide the USB cable type> Micro USB let you charge the battery and your devices. You can either use the provided cables for your smartphone or tablet manufacturer (excluding Apple) because they are universal. My MP3 player, Sony, has a proprietary jack for charging but with a USB plug, it recharges worry about the battery.

Finally, as always with RAVPOWER, you can know at any time the level of the battery by pressing the on / off: a luminous path 4 leds tells you what level you are (100-75-50 and 25) . Out of the box, it was 100%.

Ultimately, excellent battery that will help you out many times.