Recent content by E=IR

Lead acid

What do you consider the maximum width for solar panels on a trailer? Perhaps the same width as the handlebars?

Where did you learn how to set up the BMS for lithium batteries? Did you design the circuitry yourself?

Facial burns score big points, more than hand burns. Will the scar be permanent? That would be badass.

Do you know how they make the caps? Are there layers of plastic and foil?

Bouncing around on the back of the bike should keep the connections moving and digging through the oxide. An option would be to get some copper refrigerator tubing and hammer it flat.

Electric eels could power your ride!

How long does it take to charge up? How far will it go on a charge?

Hmm, will not work as a dc motor to start the gas motor.

It seems the chart is wrong and it should produce a maximum of somewhere between 20 and 50 amps. 20 amps at 50V would work fine for my bike at 1000W.

This looks promising: http://www.windbluepower.com/Wind_Blue_Motor_Hydro_Permanent_Magnet_Alternator_p/dc-500.htm http://www.honda-engines.com/engines/gxh50.htm#per A little bit higher rpms than I would like, but under load, bike operating voltage is typically in the upper 40's, with...

Those are some amazing motors. One problem with going to a car type alternator is that it cannot be used as a motor to start the gas motor (I think this is correct). I will have to look at those RC motors, the power output is right and the price is right. The rpms are a challenge but with a...

I went for a ride again tonight. The generator system works fine, as originally expected it is a range extender. 150% range extension is pretty good. However after building it I realize what I really want is a true hybrid that is not limited to range. It has a number of weaknesses that could be...

Nice find, looks great!

The system I built was put together cheaply to learn about how a hybrid system works. For real life use, make sure that the dc permanent magnet motor/generator has an amp rating that will power your hubmotor at a reasonable speed. Also, make sure that the dc motor provides an adequate voltage...