Mi-Power means you never have to miss an important call. The Mi-Power sleeve is a convenient spare battery for your iPhone offering USB and solar charging (in strong natural sunlight).

Designed to be ready when you need it, wherever you are it provides approximately 20% additional power to your iPhone (approx 45 minutes talk-time or 40 hours standby). Designed to be a 'little and often' charging solution the 450mA battery is charged internally to maintain optimum performance and battery life.

Just leave the Mi-Power sleeve in the sun to charge and connect it to the phone when you need it. The iPhone solar battery works in harmony with the handset and is lightweight enough to be kept on the phone if you choose. The Mi-Power allows you freedom from conventional charging and is perfect for travel.

Mi-Power User Options

Daniel - "For everyday use, I connect my iPhone to the Mi-Power battery jacket and charge both together overnight - the next day they are red up and ready to go, providing up to an extra 20% power, meaning I never have to worry about low battery or missing an important call."

Lucy - "I love the fact that the Mi-Power sleeve gives me that extra burst of battery power if I need it. I charge my iPhone with my Mi-Power then separate them - my iPhone is fully charged and I'm safe in the knowledge if I'm running low, I have a spare battery in my handbag. It's perfect for when I'm out and about."

Alex - "I travel a lot through work so the Mi-Power sleeve is brilliant - I charge it with my iPhone before I leave the house and then keep it topped up via my laptop or using the solar panel. It's ideal for when I'm lucky enough to be sent somewhere sunny!"

Charlotte - "I like to abseil and rock-climb in my spare time, and the Mi-Power sleeve is great for this - it takes up barely any space in my back pack, the solar battery is ideal for being in the great outdoors, and I get peace of mind knowing that in an emergency, even if my iPhone battery is completely flat, a couple of hours sunshine is all I need to reboot my phone and make that crucial call."

Brad - "I work as a landscape gardener, so I'm constantly outside and on the move. I leave the Mi-Power sleeve either on my rucksack or near where I'm working outside - it charges my iPhone 'little and often', keeping it ready-to-go no matter where I am."