Can I charge it while using BLAVOR power bank?

Yes, you can charge the BLAVOR Solar Power Bank while using it to power another device. The power bank's dual USB output allows you to charge one device while simultaneously replenishing its own battery. However, charging speed may be affected, as power is being shared between charging the power bank and the device. For instance, if you have your phone charging while it's still taking in sunlight, it will still receive power but at a slower rate. Pro Tip: If you want optimum charging for your phone, prioritize charging it first before plugging the power bank into a power source. However, if you’re in a very low-light setting, it may not charge effectively while simultaneously powering another device.