Hey I had the same problem. Spent $70 buck at Honda Dealership for them to tell me that it's the alternator. I ask them how do they know. They said your Battery has a reading of 11.7 volts. It's suppose to be 12.5-13.0. Also the alternator is reading the same at 11.7 volts. It's suppose to be reading 13-14 volts. So, it's a bad alternator. Take it out and get it replaced. I had lifetime. Also the aftermarket alternators may or may not turn your battery light on inside the car. Mine never did and I couldn't tell why my battery kept going down. Also I had it check with Advance and they told me it was the battery. Bought a new battery and a few days later it went down. So a $130 bucks later, it was the ALTERNATOR. GOOD LUCK.