Vortex It
Battery Recycling
ASCD Nano 4x Version 1.11: https://easyeda.com/brettwatty/arduino-nano-4x-charger-discharger-v1-11
ASCD Mega 8x Version 2.1: https://easyeda.com/brettwatty/arduino-mega-8x-charger-discharger-v5