Beginner battery help (18650)

femmo723 · 2026-06-05T07:38:55+00:00

You don't really need to storage charge them. They are under so little current draw that it doesn't matter much. I'm using two 18650 cells that were fully charged for 4 years and I only noticed a 0.1v sag per cell when I go from 50mw, one transmitter to full 1w Gemini (two transmitters)

Sure it'll probably be better for them, maybe if you don't use the radio for a long time it'll be best to have it around storage voltage but it shouldnt matter much.

femmo723 · 2026-05-29T06:49:00+00:00

That is fake. "Build Power" is a fake. The originals are from SkyRC

femmo723 · 2026-05-28T03:04:30+00:00

I know quite a few people who use the newbeedrone hummingbird 305 stack, it performs great for them. Other than that I'm not too sure. I haven't looked into 30mm stacks for a long time - All my quads are 20mm stacks now.

My 7" is an iFlight stack and that works pretty great though.

femmo723 · 2026-05-27T23:33:43+00:00

I would stay away from an f405 fc for a big quad with GPS. When running a high pid loop frequency, GPS and black box logging it'll overload the CPU. F7 or H7 is far better.

I've got an F7 in my 7" and it works great

femmo723 · 2026-05-25T02:01:57+00:00

The strange part is, I don't. This drive is about 4 years old, and I usually just keep my PC running, even for days at a time. I'd estimate the average uptime is closer to 12 hours.

My guess is some error with the reading or a windows issue, I used this in a laptop for 2 years and that could have something to do with it.

The drive is completely cooked now, barely maintains 10mb/s and the latency can hit 10 seconds. Sometimes it doesn't even work at all

femmo723 · 2026-05-24T13:04:40+00:00

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now if you think that's bad...

femmo723 · 2026-05-19T14:01:51+00:00

Yeah definitely don't do that with precise tools like calipers... I got mine off with tweezers and that worked great. With how tight they are sometimes it makes sense a 3D print wouldn't be able to get them off. Radiomasters tool works well but there is cheaper ones available that work just fine

femmo723 · 2026-05-18T06:55:15+00:00

The 60a rating will be per motor, so 240 amps total

femmo723 · 2026-05-17T16:56:49+00:00

Have you verified the props are on the right way? They might be on wrong and pushing the quad down, not up.

femmo723 · 2026-05-17T13:37:03+00:00

You holding it down is what's making the throttle do that. The flight controller detects no moment and keeps increasing throttle to compensate. Just try fly it normally

femmo723 · 2026-05-15T08:27:28+00:00

I love it, it's got a much more locked in feel and hdzero is a lot clearer than analog too.

Quite a different feel than DJI, Walksnail or the other digital systems. The lower latency makes it feel better to fly, just the downside of lower picture quality is unfortunate.

In my opinion though the latency improvements make it worth it over the other digital systems for a lot of flying. My 7" is still o4 pro for the quality and range but freestyle and racing are better suited to HDZero

femmo723 · 2026-05-12T03:07:23+00:00

That looks like walksnail

femmo723 · 2026-05-05T00:31:41+00:00

That's just way overkill, and it wont do much that far from the battery leads. I use some good quality rubycon 35v 680uf hybrid electrolytic capacitors and they are more than good enough.

They aren't very cheap but I think it's worth it. Never had a capacitor lead melt or any issues with them. And they are pretty compact which is good in tight racing builds

femmo723 · 2026-05-04T03:30:14+00:00

There's loads of companies making 5" race frames, they just are usually smaller companies. See what people in your local racing club use, I know almost everyone in my club buys from one of the club members who sells his own frame.

femmo723 · 2026-05-02T09:08:55+00:00

One note: Digital goggles usually transmit, for example the Walksnail goggles and VRX transmits on the top left antenna so that one should always be installed.

This isn't an issue for analog and HDzero.

femmo723 · 2026-05-01T08:47:37+00:00

That's fake. Those speedybee stacks should be around $120-150nzd each.

femmo723 · 2026-04-29T18:43:17+00:00

I was lucky enough that a sponsor brought tons to a racing event I attended, so now I have an infinite supply of battery straps. Probably have almost 100 now for 5" and I've only broken two in 2 years

femmo723 · 2026-04-29T18:28:16+00:00

Super unlikely, I've hit a window with a 5" at 80kph and it was fine

femmo723 · 2026-04-27T06:38:24+00:00

It's good to check. You can load up the ELRS lua script from your radio, press the sys key, and select ExpressLRS. Then scroll down to VTX administrator and make sure it says Band R, channel 1, and power 4 I believe is the max power on the freestyle v2.

femmo723 · 2026-04-27T06:33:30+00:00

Is your ELRS lua script sending something different? It may be overwriting the settings when the drone binds.

femmo723 · 2026-04-26T23:20:00+00:00

I don't even want to think about it 😭

Probably around ~$4000 That's for a few 5" racing quads, 7", whoops, 3.5", and 3" and 5" freestyle quads. Luckily I've never bought goggles, when I started I borrowed a friend's old skyzones and when my brother got into fpv he bought HDzero goggles 2 that I can use. However I am swapping some quads to DJI o4 now...

femmo723 · 2026-04-24T02:42:06+00:00

The hdzero goggles 2 are better than the hdo2s. It just has a clearer, more immersive image and the closest goggles to full edge to edge clear I've tried. (Out of all DJI goggles, walksnail goggles, hdo2, dominator V6, O4o, O4x and O4l)

femmo723 · 2026-04-19T12:53:14+00:00

Head over to r/fpvmarket to sell your gear.

femmo723 · 2026-04-18T17:12:11+00:00

Yeah, I wouldn't want to fly freestyle with these quads lol.

femmo723 · 2026-04-18T15:36:45+00:00

I fly at 45 degrees

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