RTC module: Alternatives to DS3231?

amaruk:
Thanks guys! Removing the resistor and or diode is what I will do then. I am just surprised that these sometimes sell with the CR2032 battery. I know that many don't include the battery with it but I thought that was simply due to shipping restrictions...

Look at the price difference between an LIR2032 and CR2032 and then you will not find it so surprising that some retailers put the cheaper, but less suitable, battery in.