If you have been searching for the perfect motor/generator for your wind generator project, this is it. This motor/generator has a
very low “cut in” rpm. The “cut in” rpm refers to the rpm’s required
for the unit to start charging a battery bank. To start charging a
battery bank, a generator MUST be producing a voltage that is higher
than the voltage of the battery bank. For a 12 volt battery bank, this
is approximately 13.5 volts and for a 24 volt battery bank this is
approximately 26 volts.
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this motor/generator is rated for 2000 Watts (power = volts x amps) but
you will never see that much energy going into your battery bank. In
stiff winds, you will probably see about 200-400 Watts into a 12 volt
battery bank and around 600 Watts (max power) into a 24 volt battery
bank. This is a lot of power! Again, we could tell you this is a 2000
Watt generator and technically we would not be lying but you will never
see that kind of power.
people ask how a 150 volt motor/generator can be used on a 12 or 24
volt battery bank without harming the battery bank. The answer is
simple. The battery bank acts as a very large load compared to the wind
generator. For this reason, the battery bank “clamps” the voltage of the
generator at the voltage of the battery bank. Simply put, the voltage
of the generator will never exceed the voltage of the battery bank when
it (the wind generator) is hooked up to the battery.