This 5000 mAh portable charger with smart charge is a decent little charger to use as a battery back up for your cell phone. It’s small in size, has a sleek design, easy access to ports for charging, indicator light and fits just about anywhere to take on the go with you. I rated it three stars only because I find it pretty slow in charging my cell phone (iPhone) compared to other portable battery chargers that I’ve had in the past.