Charge the Ava bracelet for at least four hours before its first use and for at least two hours daily, until the top LED turns solid green. 

Only use the Ava charging cable provided. Charging your bracelet with an incompatible cable can lead to severe damage to the device. If you no longer have the cable that came with your device, please contact Customer Support for a replacement. 

You can plug the Ava cable into any IEC 60950-1 or IEC 62368-1 standard compliant power adapter. Your phone power adapter or your laptop power outlet, for example, usually comply with these standards.