QUICK SUMMARY The Baseus PicoGo AM31 is the world’s smallest 5000mAh MagSafe power bank, supporting 15W Qi2 charging for up to twice the speed of standard chargers. Now, if there’s one thing you should know about me, it’s that I love a power bank – especially when it’s tiny. According to Baseus, it can deliver up to twice as fast charging compared to standard MagSafe power banks. That's the kind if stuff you'd expect from one of the best power banks on the market. For the world’s smallest 5000mAh MagSafe charger, that's not too bad at all.