There are two basic types of generators to choose from. Belt – Pulley style and roller style. They can be ordered from Amazon or directly from us to ship internationally for a shipping cost of $100 to $300 depending on how fast you want it shipped and to which country.
Video Demonstration with Electrical Engineer Bradley Whaley
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MODEL: PPG-PM300-P Belt and pulley style DC generator   
  VIDEO INSTRUCTION HOW TO INSTALL |
MODEL: PPG-PM300-R Rubber Roller DCGenerator 
VIDEO DEMONSTRATION |
MODEL: PPG-R500-SS  |
Order Rubber Roller
Specifications
| Dynamo Model | PPG-PM300-P (Pulley Version)
PPG-PM300-R (Roller Version) |
| Output Voltage Range | 0 to 40 Volts DC |
| Nominal Current Rating | 15 Amps |
| Peak Current Rating | 20 Amps |
| Peak Power Output (Charging 12V Battery) | 300 Watts (15V x 20 Amps) |
| Drive Type | 2″ Diameter Pulley . 1.5″ Diameter Roller 60 Durameter |
| Peak Operating Temperature | 100℃ |
| Cooling Method | Air-cooled |
| Shaft Bearing Type | Ball Bearing |
| Mounting Bolt Size | 6 mm |
| Wire Lead Length | ~12″ |
| Wire Lead Size | Size 12 AWG |
| Approximate Weight | ~8 Lbs |
| Number of Poles (Brushes) | 4 |
| Generator Type | This is a DC permanent magnet motor being used as a generator. |
| Peak to Peak Voltage | Varies depending on RPMs (See this output waveform) |
| Voltage Output Vs. RPM | Voltage Curve Graph |
| Rated Operating Speed | 2800 RPMs |
| Internal Resistance | ~ 0.35 Ohms |
Typical Amp-hours During 1 Hour of Use5 to 10 @12VTypical Power During 1 Hour of Use100 Watt Hours (0.1 KWH)
BENCHMARK / TEST DATA
This data was recorded using a WattsVIEW power monitor while charging a 12V Deep Cycle Duracell Battery Powerpack during a one-hour charging session.
For more information see the FAQ WEBPAGE. If you want to buy a generator stand ready to go out of the box then go HERE.
BENCH MARKING / TEST RESULTS
The data below shows actual data from a belt – pulley generator during a one hour bike riding session. Remember that Watts = Volts X Amps. So the 2nd chart below (green chart) is Watts which is simply the product of the red (Amps) and white (Volts) lines of the first chart.
| Chart 1
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Chart 2
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Chart 3
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