This might be the newbie in my but I am really confused about something I am seeing with my DIY wind generator. When there is no resistance, it is not hooked up to the battery, I get the motor to run at about 800 to 1000 RPM, with about a 10mph wind. Once a 12V battery is attached the motors slow down to about 300 to 400 RPM, which I am assuming is due to resistance and metering of the voltage to the batteries. I am using a very simple setup, motor, with a full-wave rectifier, connected to the battery. However, when I then hooked up a 24 V, well it isn't fully charged to 19.9V, battery to see what would happen the motors speed up to match the voltage and runs at the 800 to 1000RPM. I do not change anything on the system other than the battery setup. My understanding of wind generators should be that they run at the speed of the wind with resistance and motors produce energy related to the speed. I am using Permanent Magnet DC Generator with a Current: 1.5A continuous, 2.5A max at about 1200 RPM for 13.8VDC. By the way, I am not seeing any voltage near 1.5A at 1000RPM, I am at .02A.