Virtual Boy Battery Pack

RetroOnyx USB-C rechargeable VB battery pack design with eInk indicator, high quality 3D printed carbon fiber housing, and aluminum top plate with laser etched graphics.  A high capacity lithium-ion cell gives you run times greater than the original Nintendo battery pack while allowing the conviences of rechargeable USB-C.  You can also fast charge via USB-C while playing for extended play.  This product will be built and distributed by RetroOnyx, LLC.   
 
Features overview:
eInk battery indicator
High quality 3D printed carbon fiber housing
Anodized black aluminum cover with laser etched graphic
Several choices of laser etched graphics for customization
USB-C connector for charging
Charge while playing for extended play
22,200 mWh capacity lithium cell (1.6x of OEM pack)
Target weight of 135 grams
Over/under voltage protection and short circuit protection
Thermally monitored for increased charging safety
Target of 33mm thickness on housing
 
Original Nintendo Model # VUE-007 Battery pack specs:
6 Double AA Batteries
9V @ 1500mAh for 13,500 mWh (alkaline)
189 grams loaded with batteries
~40 mm thick housing at top end