Keep your Samsung Galaxy S9 charged with this Battery Case. Up to 150% extra power in the sleek travel charger. This battery case adds minimal length to your phone. Hold and use your phone like normal without any hassle of unnecessary bulk. Hold the sleek ON/OFF button on the PowerBear battery case to turn the case ON and OFF whenever you need the extra power. Our durable design keeps your smartphone protected from falls and tumbles. Dedicated internal electronics protect your phone from overcharging, short circuiting, and discharging. All while keeping your phone sleek and stylish. If you are not absolutely 100% satisfied with your battery case, let us know right away! We will do everything we can to make sure you are perfectly satisfied with your purchase. That's the PowerBear guarantee!