Chinese portable power company Powerocks has an ever growing range of mobile phone power boosting accessories. The high capacity portable batteries provide additional power for mobile and tablet devices that are compatible with USB ports.
The lithium-ion batteries can be charged form a mains power supply and then provide several re-charges for smart phones and tablet devices. The slim-line design of iPhones and the like mean the battery cannot be swapped with a spare, it must be recharged, resulting in companies coming up with novel ways to help users re-charge when travelling or away from mains charging.
The range includes the Stone series of portable batteries that offer between 5800mAh and 7800mAh capacity, which provide an additional three times power for devices; The Magicstick is the size of an AA cell and offers 2600mAH power on the go for phone devices.
The ultimate in portable battery is built into the phone cover. The interestingly named Cheese Crystal is a protective case for the iPhone4 that has an 1800mAH lithium-ion battery incorporated in it to double potential battery life.
When charged, Powerocks range can power up to two devices, dependant on model, two or three times. The designs are complimentary to Apple style and show these chargers can be sleek and elegant but still pack a lot of power.