Don't trust them period. Just like people are killed everyday by unloaded guns so it is with these batteries. There are to many cheap imports and too little proper knowledge about handling and using. Everyone want's to charge fast and fly hard and that is causing these things to become ticking time bombs. I have been lucky also in not having any of these go up, but with every use the odds get greater and greater something will happen. I am going to build some kind of outdoor charging and storage station. I've been through a house fire and it's not fun to stand and watch while it burns down.