[Ovmsdev] 12v battery alert threshold?

[Greg D.]

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