[Ovmsdev] 12v battery alert threshold?

Hi folks, I'm getting alerts from OVMS that my 12v battery is failing, as it's dropped below the threshold, which is set to 13v for some reason. So I get a notification every time the car transitions from awake to asleep. I don't see a configuration item, nor anything in the OVMS v2 app. Oddly, the threshold is 13.2 for my v3.0 proto module, but I can't find a config item there either. How do I change the threshold? Greg