Joke: How to Safely Charge Your Galaxy Note 7 [Pic]. So, you paid over $800 for your new Note 7, and you don't want to risk it blowing up in your car or your house. What to do? Well, we all have old ammo boxes lying around, don't we? If you don't, your local Army Surplus store will be happy to sell you one. Place phone in ammo box. Plug it in. Leave overnight. You will know by morning whether your phone is one of the good ones or not. Simple.