Everyone is looking for high performance in their smartphone or tablet nowadays, but most of the time it comes at a cost. The more powerful the gadget, the faster its battery runs out and leaves you hanging when you most need it.

There are the usual suspects in these cases, and first on the list of battery drainers we can find the Android smartphones and people who are using 3G/4G and WiFi know this very well. They usually carry around a second battery in their pocket or use portable chargers so Panasonic decided to bring in no more than eight of these for people who truly need them.

These portable chargers are a reasonable solution to your problem and Panasonic has recently decided to offer eight external USB battery packs that you can use to charge your smartphone or tablets when you are on the road. The company calls these USB Mobile Power Supplies and they cover all models, from lower-end to high-capacity gadgets.

Panasonic’s QE-QL301 is one of these eight external USB battery packs and the most powerful one of them. There’s a high-capacity battery (10,260 mAh) coming with this one so that users are able to charge two devices at the same time, or a single device up to four times using a USB connection.

Three of Panasonic’s external USB battery packs use Qi technology which enables wireless charging and these just might be the preferred option for a lot of users. The wireless charging feature is a new innovation brought by Energizer which has revolutionized the way people are charging their devices. The new technology has recently become a global standard for charging devices wirelessly. People will also get the option of using the USB chords for charging but we might soon find that wireless charging is the way to go and the most comfortable option of all.

All in all, Panasonic’s new release will most likely become a very popular and practical option to charge your devices and make sure you never run out of power. The happiest people about this release might be owners of the Lumia 900 or iPhone who have a hard time not being able to replace their battery with a second one.

Panasonic’s USB Mobile Power Supplies will become available on the 28th of May in Japan for now and will become available very soon all around the world.