There are few things worse than running out of battery power on your mobile phone just when you need it, which is why there’s a huge market in portable battery packs which you can use to top up or recharge your handset. The problem with these babies is they usually suffer from power leakage, which means you have to keep them charged up regularly too. It’s a bit of a vicious circle. But no longer.

This One Year Smartphone Backup Battery packs a goodly 5600mAh worth of juice into a small pocket friendly shape, but most importantly it features a unique design that ‘seals in power’ which means that even after a year sitting on a shelf the thing should contain 97% of it’s maximum charge.

No more cursing as you discover your backup battery needs a backup. The product fully charges a phone in under 3 hours and can charge a typical smartphone up to 3 times before it needs charging itself. Oh and it contains an LED flashlight and beacon just for fun. It’s around the size of a packet of gum and costs $69.95.