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Mikado Logo Helicopters Mikado Logo Helicopters Discussion


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Old 07-27-2021, 11:29 PM   #1 (permalink)
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Default Solar Generator charging lipos with Logo 800 flight

This is something fun I wanted to try.

I just wanted to share, I have been testing out Solar Generators to charge our lipo batteries.

I have charged at 10 and 15 amps parallel and in series and both have worked out.

I bought a small unit to test it and see how it works and well it does work.

I will be buying a bigger Solar Generator with more solar. Again, this is just something fun for me and since I have 3 14s, I leave with them charged and charge once or twice while at the field and then exercise my vocal cords the rest of the time.... Talk

I had a fan setup on the table but it's not in the pic, I plan on posting more.

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Old 07-28-2021, 04:03 AM   #2 (permalink)
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Hi ,
3 x 400w solar panel would be great
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Old 07-28-2021, 11:11 AM   #3 (permalink)
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Hi ,
3 x 400w solar panel would be great
That would be perfect. Looking at either a 3000 or 3600-watt solar generator that can take that solar charge input.
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Old 07-28-2021, 12:12 PM   #4 (permalink)
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Hi ,
3 x 400w solar panel would be great
How big and heavy would that be? I don't know much about these, but that would be more watts than my 1000w internal combustion generator.
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Old 07-28-2021, 10:31 PM   #5 (permalink)
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How big and heavy would that be? I don't know much about these, but that would be more watts than my 1000w internal combustion generator.
Well, I haven't seen any foldable portable 400-watt solar panels, but there are 200-watt foldable panels that weigh around 15 lbs with a strap to carry.

I just got a 200-watt rigid panel (doesn't fold) it weighs 26.5 lbs.
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Old 07-29-2021, 12:30 AM   #6 (permalink)
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You were looking for "portable" solar generator ? It's not going to be portable at all with solar energy.
Weight to energy ratio is way too behind internal comb powering. If portability is not an issue, then panels can be fixed on top of the small roof in that field .
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Old 07-29-2021, 01:12 AM   #7 (permalink)
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You were looking for "portable" solar generator ? It's not going to be portable at all with solar energy.
Weight to energy ratio is way too behind internal comb powering. If portability is not an issue, then panels can be fixed on top of the small roof in that field .
I am using a portable solar generator with solar. In the second pic, that little black box is the solar generator. The solar panel in the pic folds into 1 square and has a carry handle.

Delta pro 3600w solar generator = 100 Ibs
Honda 3000w inverter = 130 Ibs with no gas

my panel is 10 Ibs, I threw all that stuff in my car.
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Old 07-29-2021, 02:12 AM   #8 (permalink)
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Originally Posted by jhheli View Post
I am using a portable solar generator with solar. In the second pic, that little black box is the solar generator. The solar panel in the pic folds into 1 square and has a carry handle.

Delta pro 3600w solar generator = 100 Ibs
Honda 3000w inverter = 130 Ibs with no gas

my panel is 10 Ibs, I threw all that stuff in my car.
Well, that's new for me, a portable 3600w solar generator ?

I searched on google, it seems portable but I think it's not completely. I thougt that why there is no pics about it's panels, then I saw one. Oh man, that's not portable the way it's supposed to be Those panels are huge
And portable solar generators are really expensive. I was suggesting plugging panels output directly to charger, maybe dc-dc regulator could be added but not necessarily.

Btw, why you are comparing with Honda 3kw? You can go with 2kw silent generators.
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Old 07-29-2021, 03:45 AM   #9 (permalink)
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Delta pro 3600w solar generator = 100 Ibs
The Delta pro is not a solar power system, it's a battery.

The Delta pro battery can be charged from any source, including solar, but no solar panels are included with the Delta Pro.
Max charge rate is 1200W, it would need a very large fixed solar panel array to provide that much power. Realistically this is a battery that you would use to charge from at the field without solar, then re-charge the battery during at home.

to put some context on the size of panel you would need to generate 1000W. In perfect conditions, a sunny location, direct sunlight, not a cloud in the sky the input solar power to the panel is about 1000W per square meter (this is a hard limit unless the sun gets brighter!). A typical panel is about 20% efficient, so each 1M sq panel will in perfect conditions produce about 200W. So to get 1000W you would need at least 5M sq of panels (54 sq ft). And that's on a perfect day, if it was winter or cloudy, double it or treble it or more.
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Old 07-29-2021, 04:12 PM   #10 (permalink)
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Originally Posted by Smoggie View Post
The Delta pro is not a solar power system, it's a battery.
The Delta pro gets its power from electricity and can be charged from solar and used while charging with solar.

We can call it a battery powered generator I am having fun here but I get what you're saying, solar generator just sounds coooooler.

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Originally Posted by Kgnx View Post
Well, that's new for me, a portable 3600w solar generator ?

Oh man, that's not portable the way it's supposed to be Those panels are huge
And portable solar generators are really expensive. I was suggesting plugging panels output directly to charger, maybe dc-dc regulator could be added but not necessarily.

Btw, why you are comparing with Honda 3kw? You can go with 2kw silent generators.
I've attached a screenshot of the solar panel, it really is portable,

I don't disagree with you that solar generators are expensive, but considering the Texas power grid and gas shortages I've experienced, these little battery generators can come in very useful.

I compared Honda 3kw because I was looking at getting a 3600 solar generator because .... well I have a Honda and Yamaha.

I am flying 14s 5000mah batteries, using a 24v ps and a 4010 Icharger. I am able to charge 2 14s packs from that little solar gen in the pic.

I use to bring my Yamaha 2400w generator to the field so I can charge 2 14s in 15min so I can fly 100 flights a day....now I just chill and watch others fly and it's something new to talk about.... wait where is your generator, why do you have a solar panel on the ground

This is something I'm playing with, something I'm trying and it works and I'm having fun with it. It's silent at the field, no noise and I have a fan plugged in to keep the bugs and cool us down.

It might not happen anytime soon, but when it does you will pull up to a RC field and all you'll hear is people talking and flying.... One day
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Old 07-30-2021, 06:36 AM   #11 (permalink)
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I compared Honda 3kw because I was looking at getting a 3600 solar generator because .... well I have a Honda and Yamaha.
The portable 'Bluetti' solar panels you show in your have (if you buy the largest version) a maximum output (in perfect sun conditions) of 200W, which is a long way shy of the headline 3600W figure that keeps being mentioned.

if you actually wanted a system that could continuously output 3600W in the same way as a petrol generator can, then you would first need a very sunny day, then you would need 20+ of those portable solar arrays (not so portable if when there are 20!)

Being more realistic, if you wanted to do a couple of hours of charging at 1000W then the single 200W solar array would have to be out in perfect sun for about 12 hours to put that much charge back into the battery.
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Old 07-30-2021, 11:03 AM   #12 (permalink)
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This is something fun I wanted to try.
I think most of you are missing the point, my main reason for doing this was fun for ME.

I only charged at 1c per battery on this little setup, which is one 7s 5000 mah battery, this equals 129.5 watts. So two of these are 259 watts.

1c charge rate is 259 watts

At 2c charging two 7s is around 518 watts, my charging needs aren't that high.

Buuuut if I had a battery generator with the capacity of 3600 watts charging at 2c with No Solar Panels.... this would last for about 6.9 hours of me charging 2 7s batteries.

After flying, my packs are around 3.83v per cell, charging at 2c takes me about 30min.

I could technically charge 2 packs in 1 hour for about 6 hours with no panels.
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Old 07-31-2021, 03:24 AM   #13 (permalink)
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I could technically charge 2 packs in 1 hour for about 6 hours with no panels.
That's kinda the point I was making. You are actually charging primarily from a battery, not from solar directly. To call this a 3600W solar generator is wrong. It's actually a 100-200W 'solar generator' and a 3600Wh battery.

As you point out in your statement there is absolutely no requirement for any solar panels at the field, that battery system has more than enough stored energy for a day of flying. Only time you might need to take panels to the field is if you were away for a few days and needed to 'top-up' the battery. Otherwise the most efficient use of this system would be to charge it up at home, which could be done with non-portable (cheaper and more efficient) solar panels if you like.
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Old 07-31-2021, 08:34 PM   #14 (permalink)
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That's kinda the point I was making. You are actually charging primarily from a battery, not from solar directly. To call this a 3600W solar generator is wrong. It's actually a 100-200W 'solar generator' and a 3600Wh battery.

As you point out in your statement there is absolutely no requirement for any solar panels at the field.
I never said I was charging from solar directly, in the pick is a 600w battery generator that has a solar panel connected to it. I plugged it up so I would know.

The 600w battery generator can take 200w of solar. The 3600w battery generator can take 1200w of solar input.

For my situation, there is every reason to have a solar panel at the field because it is a small unit, but there is about 80w of solar input at the same time of me pulling 260w, 260w output. Now my battery gen doesn't die as fast because it is charging while being discharged.

I said it would be nice to have I don't own a 3600w solar gen. If I say I want to call it a solar generator because I like the way it sounds, that's what I'll call it. It's used as a marketing term. When I do a tic toc with the heli, I don't call it a backwards and forwards upside down and right side up helicopter thrust move, it's a tic toc cler.

Much quieter at the field.
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Old 08-02-2021, 09:50 AM   #15 (permalink)
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Elon would be proud, awesome!!!
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you should look into it...........
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