Using the PackLite Nova USB is easy. First, if you want to use it in its inflated form, just inflate it. To turn it on, press the power button. You can switch between Turbo and Low modes according to your needs. For charging, you have two options. You can put it under sunlight for 10 - 12 hours to recharge via solar power, or use the USB input and it'll be fully charged in 1 hour. When taking it to the pool or lake, don't worry as its floating and waterproof design allows it to be submerged up to 1m. Just make sure not to leave it in water for an extremely long time. For maintenance, keep it clean and dry. If it gets dirty, you can gently wipe it with a damp cloth. Store it in a cool and dry place when not in use.