As a rider, I always want to make sure that my motorcycle`s battery is charged and ready to go when I need it. The ULTRAPOWER indicator did NOT disappoint. As a result of my tests, I determined that this product is incredibly convenient, easy to use, and effective. The green LED light indicates that the battery is fully charged and the red light indicates that the battery is still charging. The only downside is that it took a bit longer than expected to fully charge my battery .Overall the ULTRAPOWER Maintainer is a great investment for any rider looking to keep their motorcycle battery charged and ready to hit the road..