First casualty since I started vaping in July. When I plug my 401 battery into the charger, it blinks 5 times as it's supposed to do. Then the charger shows fully charged after a couple of minutes. But the battery doesn't appear to be working. I've tried it with a known good atty. I also know the charger is working properly with other batteries. I've cleaned the threads and contact point with alchohol.
This is a vacuum (?) type battery. Is it dead? or the "stuck switch" a possibility? The flashing when I plug it into the charger is what is confusing me. Would it flash if it's dead? If it's stuck, any suggestions?

Thanks for helping a newbie.
This is a vacuum (?) type battery. Is it dead? or the "stuck switch" a possibility? The flashing when I plug it into the charger is what is confusing me. Would it flash if it's dead? If it's stuck, any suggestions?
Thanks for helping a newbie.