You could put a series diode between the battery positive and the arduino Voltage input. That would knock the voltage down .4-.6 volts and keep you within AVR chip specifications. The cathode end of the diode would wire to the arduino.
Lefty
You could put a series diode between the battery positive and the arduino Voltage input. That would knock the voltage down .4-.6 volts and keep you within AVR chip specifications. The cathode end of the diode would wire to the arduino.
Lefty