Babka is based on Biscotti and uses the same battery check logic, except that Biscotti is a 4-blink check by default. I upped it to 8-blink default. But the extra precision highlights a slight oversight… there’s no forced delay between starting the ADC and taking the first reading. The ADC can take a little while to “settle in” and give a good reading. When the first battery reading is done, it hasn’t settled in yet. I really should add a 100ms delay or so to help with that. Thanks for mentioning it!