> How do they all not drain power at a similar rate? I do not know if each smoke detector drains power at a similar rate (maybe some are in hotter or colder lo

> How do they all not drain power at a similar rate? I do not know if each smoke detector drains power at a similar rate (maybe some are in hotter or colder locations in the house), but I do know that the total energy in each battery can vary as well.