Henry Saint John/Shutterstock We may receive a commission on purchases made from links. Your battery charger is a pretty complicated tool, and troubleshooting it can be a challenge. Fortunately, manufacturers tend to build in some kind of trouble indicator. For instance, there’s a series of lights on your Ryobi battery charger that will help determine a fault with the battery.  So with all those flashing lights, what does it mean if it’s orange? First off, it means you’ve got...