Some interesting thermal images of an Arduino Mega that seem to back up the "VIN should be less than 7 volts" advice we often give. http://australianrobotics.com.au/news/fuelling-your-arduino-why-you-should-use-an-external-power-breakout Rob

Thermal images of a Mega

system May 17, 2012, 10:15pm 5

I wished that there are cheap, rechargeable, common, high capacity 5V batteries so that I can bypass the regulator on the Arduino and save power!

Topic		Replies	Views
Arduino Mega Voltage Regulator Extremely Hot Motors, Mechanics, Power and CNC	9	6545	May 6, 2021
Swapping the voltage regulator on the arduino? Frequently-Asked Questions	17	6257	May 6, 2021
Mega Power source General Electronics	19	6635	May 6, 2021
External 5V power question Frequently-Asked Questions	17	10081	May 6, 2021
Powering ATMEGA 2560 General Electronics	26	9283	May 6, 2021