How to say "the battery pack itself charges via micro-usb, like most battery packs out there today. it has a 3,300mah capacity, so it’s on the lower end of usb battery packs its size. though, it’s also designed to be waterproof (ipx7 so up to 1m for up to 30 mins) and snap onto the front of a bike computer at speed. obviously, there are tradeoffs here compared to a simple usb lipstick charger." in Polish