You can find a mobile battery charger just about anywhere, but finding a good one isn’t easy. I’ve settled on this Baseus model, which I’ve been using for a pocket power boost for almost a year. It’s tiny, much smaller than other 10,000mAh models, comes with a USB-C cable, and charges at 45 watts. Today it’s over half off, just $17.99 at Woot . The “Picogo” first caught my attention because of its size. At just 3.5 inches on its longest side, it’s easy to slip into just about any bag (specifically the one I was using for the Freewrite Traveller). Despite being so small, it packs in a USB-C cable that doubles as a handle thanks to a clever little notch at the top. You’ve also got standard USB-C and USB-A ports for connecting external cables, plus a button and LED readout to check the current power level. Perhaps most impressive is that it outputs at 45 watts. That’s enough to max out the fast charging on almost all smartphones (with enough to fully recharge the battery once, maybe twice), and it’s enough to at least give a little boost to some smaller, lighter laptops. That is a lot of versatility in a very small package. Woot is selling this Baseus charger for the next 13 days, or until it runs out of stock. With a 55% discount, it might not last long — I’ve seen some of the other batteries in the same promotion go out of stock already. If you’re not fast enough, Amazon (Woot’s parent company) is currently showing it at $25 . Get a small 10,000mAh charger for $18 View Deal