By Kirk Miller I own literally a dozen phone chargers in all shapes, sizes and forms — wireless, portable, solar-powered, etc. But I don’t have a single one that can power up my laptop. And of the very few charging options that do have that kind of power, the portability is limited and the price tag prohibitive. Last year BioLite, a Brooklyn-based outdoor gear brand, introduced the Charge-PD series, a line of portable power banks with one USB-A and two USB-C ports, which the company says could offer “safe, efficient charging up to 18W,” or more than three times faster than a traditional USB po…