A: An inferior vena cava filter is a cone-shaped metal device that prevents blood clots from traveling to the lungs, according to Cleveland Clinic. Doctors place this device in the inferior vena cava to catch blood clots that have broken loose, explains the University of Michigan Health System.
Fitbit Blaze requires a maximum of 1 â 2 hours to charge fully. It comes with a rechargeable lithium-polymer battery. Since itâs a smartwatch comes with the fitness tracker. The Fitbit Blaze has the improved battery life and it can go up to 4-5 days per charge.
Is anyone having trouble with their fitbit flex not charging??? I received mine over a week ago, charged it completely, and when the battery went low about 5-6 days later it would not charge up anymore.I have reset it (pushed the small button on the charger), and tried everything they recommend as well as what I can think of, but nothing is working. received mine over a week ago, charged it completely, and when the battery went low about 5-6 days later it would not charge up anymore. I have reset it (pushed the small button on the charger), and tried everything they recommend as well as what I can think of, but nothing is working.