FuriousFPV – Smart Cable V2

The smart cable from Furious FPV essentially lets you turn any battery with an XT60 connector into a way to power your fatshark, or fatshark style FPV goggles.  It supports 2-6S lipos and includes both a fatshark barrel and balance lead connector to power your FPV goggles.  No need to worry about charging your fatshark battery, or 18650 cells as you can just use any spare battery you have in your flight back.  Apart from being a voltage regulator, this smart cable is actually smart.  It has an OLED display to show your battery voltage, current, timer and temperature.  It also features a configurable alarm (time or voltage based) and also a low voltage cutoff to protect your battery if you forget to disconnect it.

https://www.youtube.com/watch?v=mjybQn-_myQ