Forum Forums Forum List Fire Alarm Technica... Charging circuit 41... Notifications Clear all Charging circuit 4100U Last Post RSS Alcf (@alcf) New Member Joined: 6 months ago Posts: 1 Topic starter 02/12/2022 1:47 pm Forgive me if this is a basic question but I'm new to this position. What would be the likely cause of the FACP charging circuit (8566-071) only be charging my batteries to 70% instead of 80%? Quote Share: