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HelicopterMain Discussion › Reducing the internal resistance of LiPos
04-17-2017 10:37 PM  7 months agoPost 101
EEngineer

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TX

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"And I know you have to calibrate"

Ok, but your numbers were off....

What if the coil's diameter was large enough to have the battery's longitudinal axis fit within the coil?

Then a magnetic field could be applied to the battery on 3 different axes....and also allows for the whole "jig" to be rotated so that all 3 axes of the earth's magnetic field could be tested.

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04-17-2017 10:59 PM  7 months agoPost 102
heliraptor10

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kokomo, in-US

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I used a car stereo to bump up the amp draw and lowered the cell pro so it would take longer.

But when I got sick last October I quit flying, and quit messing with stuff.

But I'm doing better and this is where I'm at with things.

I'll try to get temps this next time.

Goblin! where have you been all my life?
RC helis, the original fidget spinners

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04-17-2017 11:01 PM  7 months agoPost 103
heliraptor10

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kokomo, in-US

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Well it's a 3 axis.
I was probably mistaken in pointing y at the magnet and reading only that.

To calculate North and field strength it uses all 3. So I'm sure I screwed that up.

Goblin! where have you been all my life?
RC helis, the original fidget spinners

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04-17-2017 11:06 PM  7 months agoPost 104
heliraptor10

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kokomo, in-US

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Are you actually reading anything I'm posting?

I've said the original patent described the various axis' for the field and they concluded that it should be perpendicular, right angle, longitudinal...

Long ways across the field.

I plan on using a small straight wall bucket.

Eventually, I'm broke at the moment.

Goblin! where have you been all my life?
RC helis, the original fidget spinners

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04-17-2017 11:11 PM  7 months agoPost 105
heliraptor10

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kokomo, in-US

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New 4cell battery
No emf boost
2nd charge of day
Final reading

Goblin! where have you been all my life?
RC helis, the original fidget spinners

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04-18-2017 12:00 AM  7 months agoPost 106
heliraptor10

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kokomo, in-US

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No reading for 2nd charge of the day
On the old 4s with EMF boost

Charging 3rd charge of the day

Goblin! where have you been all my life?
RC helis, the original fidget spinners

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04-18-2017 12:26 AM  7 months agoPost 107
heliraptor10

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kokomo, in-US

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Old 4 cell
3rd charge of the day
Final reading
Emf boost

Goblin! where have you been all my life?
RC helis, the original fidget spinners

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04-18-2017 12:51 AM  7 months agoPost 108
BeltFedBrowning

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Kansas City

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I have a 1.5 Tesla magnet sittin right in front of me.

perfer et obdura; dolor hic tibi proderit olim

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04-18-2017 12:59 AM  7 months agoPost 109
JuanRodriguez

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The Villages, Florida

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I'm just wondering what would happen if I build one of those coils and place my joint inside .... will the EMF cure my ED ??? Maybe I can sell that contraption if it does !!!! LOL !!!

Been there, done that and old enough to know better.....

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04-18-2017 01:02 AM  7 months agoPost 110
heliraptor10

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kokomo, in-US

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New 4 cell no emf
No reading..
At 17 min I should have gotten a reading.

Maybe there's time for a fourth...

Goblin! where have you been all my life?
RC helis, the original fidget spinners

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04-18-2017 01:13 AM  7 months agoPost 111
EEngineer

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TX

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"Maybe I can sell that contraption if it does !!!! LOL !!!"

It depends on what direction you want it to point to.....

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04-18-2017 01:15 AM  7 months agoPost 112
EEngineer

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TX

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See a doctor...

An electrocockaphlopogist...

They know about magnetocockaphlopogy......

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04-18-2017 01:16 AM  7 months agoPost 113
BeltFedBrowning

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Kansas City

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will the EMF cure my ED ???
Depending on the frequency, it makes the magnetic poles stand at attention, so maybe...

perfer et obdura; dolor hic tibi proderit olim

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04-18-2017 03:28 PM  7 months agoPost 114
icanfly

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ontario

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yo heliraptor, eengineer has your best interests at heart.

Interesting that I see your topic after studying crystalline matirx of metals and other such things at the molecular level(how they make neodymium magnets and the like).

Lower resistance should mean higher charging rate. However I finished charging two nanotech lipos at 4 amps (3.4a to tell you what the charger was doing) and they were loaded in 15 minutes. I can easily get four round magnets and box the lipo within and see if the charger amps allows higher c back to the lipos.

It isn't a case of doubting your observations only that they are incomplete in demonstrating without an example of the normal charge ir, the improved ir with m field and perhaps as said the difference in time it took to put back so and so many mah.

Also, post the link to the patent on this.

my guess is you could take two magnets and sandwich the lipo between them provided the polarization is correct.

from your diagrams and photos you have an induction coil parallel with the charger, if your cell app can measure the magnetic field of the coil alone at least wire resistance can be understood with a reading of more winds or less and the resultant strength of field. It's easy enough to assume wire resistance with charts all over the net on household e chord wire of typically multi strand 18guage. I think eengineer was trying to assert if any megnetic field was present or if you experienced a placebo effect.

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04-18-2017 10:54 PM  7 months agoPost 115
heliraptor10

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kokomo, in-US

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Not going to get to fly today.
My charger doesn't do discharge cycles.

I know...
You're heartbroken
You were on the edge of your seats...

I'll post more when I get more.

Goblin! where have you been all my life?
RC helis, the original fidget spinners

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04-19-2017 12:13 AM  7 months agoPost 116
EEngineer

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TX

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If you can find an iron pipe or something(check it for attraction to a magnet first), you can "up" the relative permeability by perhaps 100 or more over that of air....and increase the magnetic field strength by that much.

Your battery should fit in a 3" pipe probably.

Anything you can do to increase the coil's current, the number of coil turns, and the relative permeability of the coil's core....

Or all 3.....will increase the field strength.

Logo 600SXs, 800XX, TDR IIs

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04-19-2017 12:30 AM  7 months agoPost 117
heliraptor10

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kokomo, in-US

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I did consider that.

That's why I was aware that different materials made for a different net magnetic effect. However in my mind, it should be just the coil and the battery.

Call it intuition,
And avoidance of excess heat generated.

The only thing I'm changing when I build the next one is the diameter and over all volume.
I don't want to get too crazy.

Just wrap it around something the size of a coffee can, plastic of course.

Goblin! where have you been all my life?
RC helis, the original fidget spinners

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04-19-2017 12:56 AM  7 months agoPost 118
AirWolfRC

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42½ N, 83½ W

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If you can find an iron pipe or something(check it for attraction to a magnet first), you can "up" the relative permeability by perhaps 100 or more over that of air....and increase the magnetic field strength by that much.
Sure - - - but within the metal of the pipe walls - - - not in the open space inside the pipe.

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04-19-2017 01:11 AM  7 months agoPost 119
heliraptor10

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kokomo, in-US

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Have a little faith in the fact that though I'm not selling anything

I am taking a risk in sharing with you guys

You think anyone is going to buy batteries from me on this forum, ever again?

Goblin! where have you been all my life?
RC helis, the original fidget spinners

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04-19-2017 02:22 AM  7 months agoPost 120
icanfly

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ontario

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any remote possibility of posting the patent of the initial invention your project is based on?

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HelicopterMain Discussion › Reducing the internal resistance of LiPos
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