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Home Built Generator and Cordless Battery Charger
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1,166 Views • May 27, 2010 • Click to toggle off description
I built this generator after an ice storm knocked our power out for six days and all my tropical fish died. It uses a Briggs and Stratton 5 horsepower engine, a CS-144 120 amp alternator, and a Cobra 2500 watt continuous inverter.

This was the first ever testing of the entire system together, it worked like a charm except it vibrates like a freezing hyper chihuahua.

It was plugged into a "Kill-A-Watt" to see how much power the toaster would use, but it didn't work, probably due to the inverter not being a true sine wave unit. After the video was taken, I plugged a circular saw into it and it worked. Not sure why, perhaps the addition of an induction motor to the resistive load did the trick.

The eventual plan is to use a more powerful Lombardini diesel engine that I have that needs some work, but having something that works and can keep the house warm is enough for now.

The next thing to do is get a larger pulley for the engine as the small one on there does not spin the alternator fast enough to produce the proper amount of power.
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Views : 1,166
Genre: People & Blogs
Date of upload: May 27, 2010 ^^


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RYD date created : 2022-07-13T08:12:33.261209Z
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YouTube Comments - 8 Comments

Top Comments of this video!! :3

@buzz60016

12 years ago

What you have, a single alternator, to an inverter, to power your fridge and furnace is perfect. Beauty in its simplicity. How many of the Hundred Thousand people without power, due to the Huricane, would love to have a cold fridge, and light to read by, when the sun goes down. Your system is excellent. You are prepared, most are not.

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@buzz60016

12 years ago

I love these homemade generators. Not as efficient as a Honda or Yamaha generator, but very cool.

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@buzz60016

12 years ago

Another concept, is making the motor quiet. Some build a sound absorbing box with ventalation. Others modify the muffler, adding a car or motorcycle muffler to quiet the system. The new honda inverter generators are very quiet, but expensive, way expensive.

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@buzz60016

12 years ago

theepicenter is a good link to show how to build your own generator. AC or DC

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@buzz60016

12 years ago

By haveing each atlernator having its own battery, the voltage regulator will NOT fight each other

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@buzz60016

12 years ago

As usual, I did not make it clear. Each alternator, feeds its own battery. Then the bank of batteries, are feeding the inverter in PARREL. Not series. By haveing each atlernator having its own battery, the voltage regulator will fight each other. My thoughts, were to make a more powerful to run higher draw, washing machine, or air compressor.

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@buzz60016

12 years ago

Watts = Volts x Amps Watts = 12votls X 120 Amps. 1440 Watts at full power ? Does the Alternator get hot ? Im thristy for knowledge, plus I love this idea. Could you hook up 2 Alternators, each feeding two 12 volt batteries? Then use the two batteries in parrel to a single Inverter ? Could you use a double or triple pulley on the gas motor, to drive multiple alternators? Each feeding their own battery, Thanx

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@buzz60016

12 years ago

@wiredforstereo - My knowledge of electriacal physics is limited. Two alternators to a single battery is a bad idea in my opinion. Due to the voltage regulator trying to determine to voltage of the battery, when the battery is being feed by the other alternator. Each alternator, should feed just its own battery. ....... The idea of 24 volt system, or 48 volt system is the designers choice. ........... I've seen some high powered inverters that require 96 volts. ........

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