Legion Meter quick-charger will bring the best out of any USB port's charging abilities
Legion Meter's second specialty is the Watt Hour mode, useful for analyzing how much storage capacity your battery actually packs. This mode measures how much energy gets charged into the battery in watts per hour, and calculates an estimate of the total capacity.
Did we mention the gadget has a display? There's a 128x32 OLED panel which is used to show the power in watts which your device is sucking at the moment, the current in amps that the USB port is delivering to it, the voltage the USB port is outputting, and the aforementioned battery capacity counter. The display seems like a well thought-out addition, as it includes automatic screen saver mode and an actual graphics processor for quick OLED transitions.
The promising Legion Meter has mightily surpassed its funding goal and should hit the streets in October. The end price will be around $69, although you can still pledge $49 and reserve one for yourself.
source: Legion Meter