After a few 150mile days, the airhead has quit charging the battery, got stranded. Put a new freshly charged lawn battery in and made it 30 miles. Put another lawn battery in, unplugged all the lights and made it 80miles without a problem. The battery light on the dash does not light up. Checked the bulb, swapped with another and the bulb is working. Can anyone recommend a troubleshooting guide for the charging system.