Note:This firmware updates MT20 and MT30 battery state of charge curves to be more accurate. Reported battery percentages will be lower than previously reported by up to 20%. Overall battery life remains unchanged as this changes the battery reporting and not the actual battery life. https://documentation.meraki.com/MT/MT_General_Articles/MT_Frequently_Asked_Questions#What_are_the_power_requirements_for_MT_sensors.3F
