Combining a tiny backup battery and handy solar charger into a compact body the unlikely looking Strap-Ya acts as a backup when your cell is out of power.

With the ability to be charged up to 500 times and used as a spare battery for all those plagued by miniscule talktimes or those with power hungry machines like the Nokia N95 and Apple iPhone.

Available from February 9, this Japanese gadget may be just the thing for enviromentally conscious consumers or frequent travellers.