Hello, 2coats - Thank you for reviewing our USB Lithium 3.0 Ah Lithium-Ion Rechargeable Battery! We do appreciate it. However, we wanted you to know that the battery can charge cell phones. You'll simply need a cable with a USB-C on one end and then the appropriate port to plug into your phone on the other end. Additionally, you can use any charger you see fit, including fast chargers or our USB Lithium 3-Port Charger, which can provide up to 80% faster charging. If you're interested in our charger, simply search for model number FVCH01 on the Home Depot website or utilize the link below. We hope this helps! And if we can be of any support in the future, please reach out to us at Reviews@RYOBItools.com.