Here are some of the main precautions that you should follow: You should not charge the battery with more than 1 Amp current. You should never leave the battery to charge overnight. Charge your vape battery by connecting the USB cable with a TV port, laptop or game console. Features: Refillable Elf Vape Kit 1000mAh Battery Beginner-Friendly Use Any Flavour E-Liquid Single Button Operation 2ml Pods Mesh Coils Contains: Elf Rechargeable 1000mAh FB1000 Battery Device 2ml Refillable Elf Pod Elf EBC Mesh 0.8 Ohm Coil Lanyard Chain USB-C Charging Cable User Manual