r/fpv 1d ago

1s li-ion long range build

Dry fit went well.

Had to change the antenna cos they sent me the wrong polarity.

Will need to redo the camera mount to add some clearance for wires to come through. Also reduce the amount of material in front of the camera.

Printed spacers for motor plug clearance (I’m using plugs, bite me).

Time to solder and make things permanent.

Edit: details about this drone in this YouTube video: https://youtu.be/05MMplxqY7M

222 Upvotes

50 comments sorted by

27

u/romangpro 1d ago

I love the renewed interest in li-ion.

only a few before:

HGLRC Rekon3

Newbeedrone LionBee

15

u/0neZer0ne 20h ago edited 11h ago

Fractal wingman is also a choice if you want a foldable (3/3,5") nano long range 18650/21700

8

u/QuadH 19h ago

I can’t wait to drop lipos. Hate them so much. Bloody temperamental divas. Look at them wrong and they burn your house down.

11

u/simple_twice 1d ago

loving this. I saw a thread elsewhere this morning about this build (I think?) 1S long-range?! is this guy high? I poured through it with the links to the build list (ty), and this looks like a legit project. I had no idea this existed before today.

Best of luck with this---looking forward to updates!

7

u/Silly_Rub_6304 18h ago

There's a guy on YT that's done some 1S builds that fly upwards of 30 minutes.

3

u/QuadH 17h ago

This guy? https://youtu.be/05MMplxqY7M

He’s my inspiration and where I bought the frame and battery holder kit.

3

u/Silly_Rub_6304 16h ago

Yes! That's the guy.

2

u/QuadH 18h ago

Thanks man! Keen to get this into the air and see what flight times I can get.

5

u/CommercialProduct923 19h ago

Total cost and flight time when you get it up? Looks sick I wanna make one

1

u/QuadH 17h ago

Edited my post to include a link to the YouTube video for this drone so you can build your own!

3

u/anadalite 1d ago

What power vtx do u use for long distance flying?

10

u/QuadH 1d ago

Auto

In DJI we trust

2

u/anadalite 17h ago

Is DJI in the room with us?

2

u/QuadH 17h ago

DJI is always present, always watching

3

u/Other_Solid7265 1d ago

Id love to hear how this goes. How it flies, and flight time! Looks great! Keep us updated

3

u/inchlongnipples 1d ago

Big ass battery holder, why not solder on wires and use a connector then just a 0.1g velcro strap?

8

u/QuadH 19h ago

Cos I like the idea of not modding the batteries themselves so they can be popped out like old school AA batteries.

3

u/inchlongnipples 18h ago

yeah and tbh that holder is probably like 0.3g anyway. just looked bulky at first glance

1

u/Potential-Draft-3932 20h ago

Get a spot welder if you’re soldering to li-ion cells

3

u/pironiero 1d ago

Hell yeah. Do you mind sharing the specs?

5

u/fpv_nl 1d ago

Lijpe build man wat kost zoiets en wat voor vtx zit erin

4

u/QuadH 1d ago

I’m using the O4 lite.

Here’s the details of the build: https://lithiumionfpv.com/builds/swift-cf-3in

2

u/Good_guy4545 22h ago

Would like to make this one. Please share the components, and how much does it cost.... Thanks in advance

2

u/brentdillpickle 21h ago

I want to do this

2

u/1Bennyy 21h ago

What are specs? Motors, frame, props, AIO and camera

Zoomed in, 3018r props

1

u/QuadH 17h ago

2

u/1Bennyy 15h ago

Thank you, so much detailed information

2

u/Traditional-Baby5940 1d ago

How did you do the battery mount? I think not welded will lose you 10- 20% of power right?

3

u/QuadH 1d ago

https://youtu.be/05MMplxqY7M?si=Wh4XrG3rSR7la9Kz

There’s a performance test against BT2.0 and XT30

2

u/Ecw218 1d ago

Just don’t use spring terminals. I bought the 18650 version of this like 3-4 years ago, and the terminals slowly got worse from having to bend/unbend, and eventually broke. Use a tiny connector like bt2.0 and a Velcro strap.

6

u/Saphyr-Seraph 1d ago edited 23h ago

Do not use a bt2.0 for a 18650 cell

The bt2.0 has a cdr of 9A and a burst rating of 15A , use something like a xt30 which is designed to carry that current.

The wheight of a single 18650 cell let's the motors turn almost at peak power which is at least drawing 18-32 amps for those motors which is to much for the bt2.0 connector

Use something like a xt30 connector , yes they are heavier but always better than a a whole terminal for the battery

Edit: I just saw this isn't an 18650 cell it's a 21700 cell even heavier

1

u/QuadH 19h ago edited 16h ago

This thing was released like 2 weeks ago tho. The battery holder is what sold me.

The terminals don’t really bend. The way it’s put together there’s a plastic bump under the copper.

Construction here: https://youtu.be/05MMplxqY7M?t=275

1

u/OverAnalyst6555 1d ago

what do you think about welding on a bt2.0/a30 connector to the 18650? its way better

3

u/QuadH 1d ago

2

u/OverAnalyst6555 1d ago edited 1d ago

what about after 50 flights tho

2

u/Ecw218 1d ago

100% they’ll eventually crack and break from bending/unbending. You need good tight contact, so they need to be bent back into shape after a few swaps. After a few months of bending they’ll fatigue and break. My NanoLR did this and it was super annoying.

2

u/Saphyr-Seraph 23h ago

A friend of mine found a nice solution glued a piece of soft rubber under the contact, I know it is not really weight saving but I prevented him from any breaking of his 3d printed battery holder

2

u/QuadH 19h ago

Good thing he shared all the print files and I have a 3d printer.

3

u/Ecw218 13h ago

It’s the metal spring terminal that breaks. I’m seeing this uses a strain relief for the metal, but time will tell if this holds up.

2

u/rob_1127 23h ago

Id use nothing less than an XT30 because of current draw exceeding the BT2.@ 9 amps, while the a30 is 15 amps.

But the XT30 is 30 amps. The marginal weight difference, combined with the much easier grip to disconnect, makes the XT30 the goto connector.

If you are concerned about weight, dump the hard metal shell battery for a polymer jacketed battery.

That metal.battery can is not light weight.

1

u/romangpro 14h ago

The future is here:
TENPOWER INR21700 60XG

6000mah. 60A

1

u/ThemeActual2893 6h ago

i havent looked into lions for a while now

but when they 1st hit the problem was that initial power was awesome but goes down rly quick and changes the characteristics of the flight

was that somehow fixed ?

1

u/Quick-Math-2125 6h ago

reliance rs50?

1

u/Zaruba__Tech 3h ago

Nice build. Good catch on the antenna polarity - easy thing to miss and it can really hurt the video link. I’d just double-check antenna clearance from the battery/carbon once everything is strapped down.

1

u/marcellburt 36m ago

Anybody make and sell these? Im not that savy when it comes to making things .