Electronics > Projects, Designs, and Technical Stuff
Efficient 12V generator using a leafblower
maxwell3e10:
I wanted to build a small 12V generator using a leafblower or weedwacker engine. There is a number of videos on youtube about it. But most generators are not very efficient, getting about 10A current or using multi-HP engines.
Here is an efficient generator, it uses a $30 BLDC motor and 1 HP engine to generate over 30A charging current.
Benta:
And the question is...?
Marco:
Interesting, but what's the efficiency relative to a real generator?
maxwell3e10:
I wanted to use a small engine so it can run efficiently at low power. A good point of comparison is Ryobi 900W generator that claims to run for 3 hours at 175 W output on 1-lb propane bottle.
https://www.ryobitools.com/outdoor/products/details/900-watt-propane-inverter-generator
I am planning to do a similar test with the Lehr engine, see how long it would run on one canister.
mark03:
Interesting. What's the application?
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