Hello everyone,
I have a battery-powered project based upon Teensy 3.5, for which a requirement is adoption of AA batteries.
Now, those may be either alkaline (1.6V when fresh, 1.0V when almost depleted) or NiMh (1.35V when fully charged, 0.8V when almost depleted).
So, wanting to extract the maximum juice from the batteries, I'm looking at a power source which may vary between 4x1.6V = 6.4V and 4x0.8V = 3.2V
I know from experience that 3.2V applied to Vin are still OK for powering the Teensy 3.5 (despite the 3.6V minimum advertised voltage); but what about 6.4V (fresh alkaline batteries)?
Is it absolutely too much to bear?
Of course I could lower the voltage with a diode, but then I would not extract all the juice from NiMh.
I have a battery-powered project based upon Teensy 3.5, for which a requirement is adoption of AA batteries.
Now, those may be either alkaline (1.6V when fresh, 1.0V when almost depleted) or NiMh (1.35V when fully charged, 0.8V when almost depleted).
So, wanting to extract the maximum juice from the batteries, I'm looking at a power source which may vary between 4x1.6V = 6.4V and 4x0.8V = 3.2V
I know from experience that 3.2V applied to Vin are still OK for powering the Teensy 3.5 (despite the 3.6V minimum advertised voltage); but what about 6.4V (fresh alkaline batteries)?
Is it absolutely too much to bear?
Of course I could lower the voltage with a diode, but then I would not extract all the juice from NiMh.