H-Cell 2.0 Hydrogyn fuel cell hybrid power-train for RC models

This might interest some of you.



A hydrogen fuel cell hybrid power-train for 1/10 scale model hobby RC. The H-Cell 2.0 can be connected to almost any RC platform and will provide continuous power to recharge the on-board batteries. Using this hybrid system it is possible to increase the run time of RC vehicles by more than four times!


When the solar panel option is included the HydroFILL and H-Cell 2.0 become a 100% renewable energy system. The solar panel also has the added benefit of making the HydroFILL mobile and HydroSTIKs can be refilled anywhere the sun shines!


Here is the PDF brochure they sent me: H-Cell 2 0 Brochure.pdf



Views: 3955

Comment by Joel on September 20, 2010 at 6:03pm
"The 550-Watt (0.75 horsepower) fuel cell onboard the Ion Tiger has about 4 times the efficiency of a comparable internal combustion engine and the system provides 7 times the energy in the equivalent weight of batteries."
Comment by Chris McNair on September 20, 2010 at 6:22pm
I don’t think his argument was saying it was not efficient. I could be wrong but he may have a point. Given the amount of energy spent to make all the various parts and as said the rare materials that are mined, it very well could be more expensive to produce.
I would bet it will pay for itself rather quickly. I would like to test this in the real world.
Comment by Chris on September 20, 2010 at 6:41pm
lol elec vs gas, hybrid always wins http://www.wired.com/autopia/2009/04/behold-americas/
Comment by Ron Jacobs on September 20, 2010 at 6:55pm
Ion Tiger is great, but its weight is far above any amateur application of the technology. I suspect that will always be the case given weight regulations. Also, does it say how much that 550watts cost to research, build and maintain? Way out of my budget.
Comment by Mathew krawczun on September 20, 2010 at 7:08pm
The problem for both the electric engine and hydrogen fuel cell is the same.

Energy storage.

I'm the first to say electric motor out perform internal combustion engines like you wouldn't believe but the batteries needed to make them work don't have the energy density of a liquid gas (this is changing BTW like the lithium capacitor but its still a few years off). It’s the same problem fuel cells have, the hydrogen gas tanks takes up more space and weight then an equal amount of liquid fuel would and there is no real fix for it on the horizon. This is on top of the expense and rarity of what’s needed to make a fuel cell work make them a really inefficient.

now if you replace the fuel cell (making electrical power for the electric motors) with a small gas engine powering a generator ( making the same levels of power as the fuel cell) you'll get more efficiency. In this set up the internal combustion engine can be very small and run at a constant speed with a constant load were they're most efficient.

so sure the fuel cell one the tiger was more efficient then the internal combustion engine it replaced, but when they say that they're talking about the engine to drive the plane. That engine is was at least 3 to 5 horse power strong and quite heavy but you can make the same amount of electrical power the fuel cell put out with a far smaller gas powered engine then that.

When you compare difference between a fuel cell and a internal combustion engine doing the same job (making electrical energy to power an electeric motor) the gas powered engine wins.

tho I totally agree that fuels cells are good because then will drive invention with is always good in my views.
Comment by Greg Fletcher on September 20, 2010 at 8:54pm
I just ran the numbers and this is not practical for an aircraft. When you look at the weight/energy a typical Lipo has 4.1 times the energy density. Lipo-7.3 g/Wh, fuel cell-29.7 g/Wh You could make it fly, to prove a point, but it would be a real dog. Weight of 890 g say 400 grams for the rest of the super light plane. 30 W/1300g is a very low power to weight ratio, but a very efficient sailplane type airframe could fly. I assume that the 150W burst lasts only while the battery still has energy, enough for take off and some climb. Now if we take the same plane and replace the fuel cell device with the same weight of Lipos, This aircraft has the more peak power(if the motor can handle it) , but will have 4X the flight time. And at 1/5th the cost. Go figure?
Comment by Ersin Acar on September 21, 2010 at 12:38am
Hmm i can use this one at my second project. but need to complete 1st one xD
Comment by Tj Bordelon on September 21, 2010 at 9:06am
@Alex - Gas has more energy per unit. That same plane on gas would probably stay up for a week.
Comment by jlcortex on September 21, 2010 at 2:12pm
I have make some calculations and fuelcells (canister+stack) have less power density than LIPOs
Is it correct?
Comment by jlcortex on September 21, 2010 at 2:18pm
sorry, next time first read and then write! Yes Greg, i have make similar calculations with similar results.

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