Panasonic isn't letting any chocolate egg hangover delay its plans for global smartphone domination. It's releasing eight new external battery packs that'll power your smartphone and / or tablet. The biggest model in the series, the QE-QL301 packs a 10,260 mAh battery that claims to charge a handset four times over, or juice two at the same time (twice). The range also includes three wireless charging plates powered by Energizer's QI platform and, just to show that Panny's thought of everything: the dual-USB ports on some of the models come with a little LED light so you can even find them during night-time power-cuts.