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BetaFPV Meteor65 Pro
#46
(18-Apr-2024, 02:50 AM)SeismicCWave Wrote: Smooth easy flying yes but the difference with me is that I like to keep the quad low to the grass. I imagine myself as Anakin in a Pod Racer in Star Wars. I do try and dash between a bit of trees but none of those whipping around by yawing really hard. That makes me dizzy.  Big Grin

That is pretty much how I fly. Very rarely go above the tree line and just a cruiser not doing any stunts.

I have spent the last few years looking for the longest flight time on a 1S battery. I built a 1S 85mm quad that gets around ten minutes flight time of easy cruising on a 1S 850mAh battery.


If you are able to find the current Mobula7 1S ELRS, I get about 5 minutes on a 450mAh battery, and about 7 minutes on a 650mAh battery. This is the first flight (a little more spirited than usual) on the 650mAh and I was not paying attention to the voltage and took it down too far...
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#47
(18-Apr-2024, 05:07 AM)brettbrandon Wrote: That is pretty much how I fly. Very rarely go above the tree line and just a cruiser not doing any stunts.

I have spent the last few years looking for the longest flight time on a 1S battery. I built a 1S 85mm quad that gets around ten minutes flight time of easy cruising on a 1S 850mAh battery.


If you are able to find the current Mobula7 1S ELRS, I get about 5 minutes on a 450mAh battery, and about 7 minutes on a 650mAh battery. This is the first flight (a little more spirited than usual) on the 650mAh and I was not paying attention to the voltage and took it down too far...

Thank you so basically a 75mm quad with a larger capacity battery pack should do it. I will look for one.

Looks like from your video you have a very nice obstacle course to fly. My backyard is more open with only a few narrower spots to fly through when I feel confident. I am still only getting use to the FPV visual image since February this year. I can move the sticks since I have been doing that for 50 plus years. I found myself moving my legs when the quad gets too close to an obstacle like the chain link fence. Big Grin

Boring video but it does show my yard.

[-] The following 1 user Likes SeismicCWave's post:
  • brettbrandon
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#48
I think buying batteries from eBay is a bad idea. I bought a 5 pack of Tattu 300 mah 1S. I took out two and also used the two batteries from BetaFPV that were included with the quad. 

The packs from BetaFPV sags a bit and has less flight time but now one of the Tattu is also sagging. That's a bit short life for a battery pack that has been used only for a few days. Thinking

I still have three more I can use. I guess that's why they are so cheap.
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#49
The quality and life of 1S LiPos are far inferior compared to anything 2S and above. Most people class them as disposable items which won't last many flights if abused or taken below 3V which often happens with 1S LiPos so that people get more than 2 minutes of flight time out of them. Another mistake people make is not storage charging 1S LiPos once they are done flying, but just leaving them in a discharged of fully charged state until their next flying session which seems to ruin 1S LiPos much quicker than LiPos with a higher cell count. So try and get into the habit of only charging them just before you want to use them and then putting them back to storage charge voltage again immediately after a flying session.

To add to the above, I don't buy LiPos from eBay unless the seller is a known FPV vendor who happens to have an verifiable eBay shop. Just like with buying SD Cards and Li-ion batteries from eBay there is a high chance that you are buying a fake/counterfeit product which just has a reputable manufacturers logo printed on it but isn't actually the real deal.
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#50
Hi everyone,

The longest fly time that I have gotten with a tiny whoop (65mm frame, 31mm props)
is almost 10 minutes. This was with a brushed motor FuriBee using a 650 mAh battery.
Yeah, these were sold as "toys" Everything, and I mean everything, on an AIO board
that is half the size of a whoop board. I think the motors were about 17000 Kv.

Hi Snow,

You know, back when I go into this, the small tiny whoop quads were little more than
toys with no information on battery management. So, yeah, disposable. Buy them,
use them, toss them. Of course, that is how most folks use most batteries for most
of the portable gear that they have, me included. We have a drawer full of batteries
in assorted sizes just waiting to be used and tossed. The point is, most folks don't
know or consider battery management unless they get into a hobby that uses Li-Po
batteries. Still, it doesn't seem to be at the forefront of necessary information. Plus, 
you I had to search to find a discharge board for 1S Li-Pos. Still, I am BAD and have 
poor battery management. Yet, my batteries seem to last a pretty long time.


Hi SeismicCWave,


Very cool video.    

If I had a back yard like that, I would be in heaven and would be able to fly a lot more.
Currently, I have to drive about 30 minutes to get to my fly location. Not too bad, but
still a drive.


Later Everyone, iFly   High Five
______________________________________
My BUILDS  ||   My INDEX   ||  Parts Guide  <-- Download


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#51
For 1S lipos, there are two common designs, a rolled cell versus a folded cell (which appears much more block like with clear 90 degree edges). Folded cells will cost more, but perform better - less sag and longer flight times. As for the connectors, BT2, A30, and GNB27 all perform similarly (just don't go with PH2.0), but for a 65mm size I think BT2 has an advantage as it is the lightest. Also note you can fit a A30 battery into a BT2 connector with a little extra force (and vice-versa). All three will fit in a GNB27 connector, but not the other way around.

For smaller mah packs (below 450) I think in general they can be considered disposable, but on larger packs like 650/850 those seem to last more cycles?
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#52
(18-Apr-2024, 09:35 AM)SnowLeopardFPV Wrote: The quality and life of 1S LiPos are far inferior compared to anything 2S and above. Most people class them as disposable items which won't last many flights if abused or taken below 3V which often happens with 1S LiPos so that people get more than 2 minutes of flight time out of them. Another mistake people make is not storage charging 1S LiPos once they are done flying, but just leaving them in a discharged of fully charged state until their next flying session which seems to ruin 1S LiPos much quicker than LiPos with a higher cell count. So try and get into the habit of only charging them just before you want to use them and then putting them back to storage charge voltage again immediately after a flying session.

To add to the above, I don't buy LiPos from eBay unless the seller is a known FPV vendor who happens to have an verifiable eBay shop. Just like with buying SD Cards and Li-ion batteries from eBay there is a high chance that you are buying a fake/counterfeit product which just has a reputable manufacturers logo printed on it but isn't actually the real deal.

That begs the question about storage charge. Yes I have chargers that can put the into storage charge. However I fly them everyday. Multiple times a day. So is storage charge necessary since I need them fully charge all the time.

BTW, yes I do put packs into storage charge as soon as I don't fly them every day. At least for the packs I care about but I have way too many packs to really maintain all the time.


I set my low voltage warning to 3.45V and I plug the pack into the tester and they always showed over 3.7V after I pulled them off the quad to recharge. I don't think that is running the packs down too low. I am very conservative since I have been playing with lipo since they came out years ago.

My flying session is the whole day so no sense really to cut off my flying session to specific time frame. Big Grin

Yes I will test the same Tattu batteries I bought from New Bee Drone to see if they last more than a few days. It is very difficult to get vendors to ship battery to Hawaii. So I buy from whomever is willing to ship to me. Tongue

I will stay away from eBay from now on.
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#53
(18-Apr-2024, 10:54 AM)iFly4rotors Wrote: Hi everyone,

The longest fly time that I have gotten with a tiny whoop (65mm frame, 31mm props)
is almost 10 minutes. This was with a brushed motor FuriBee using a 650 mAh battery.
Yeah, these were sold as "toys" Everything, and I mean everything, on an AIO board
that is half the size of a whoop board. I think the motors were about 17000 Kv.

Hi Snow,

You know, back when I go into this, the small tiny whoop quads were little more than
toys with no information on battery management. So, yeah, disposable. Buy them,
use them, toss them. Of course, that is how most folks use most batteries for most
of the portable gear that they have, me included. We have a drawer full of batteries
in assorted sizes just waiting to be used and tossed. The point is, most folks don't
know or consider battery management unless they get into a hobby that uses Li-Po
batteries. Still, it doesn't seem to be at the forefront of necessary information. Plus, 
you I had to search to find a discharge board for 1S Li-Pos. Still, I am BAD and have 
poor battery management. Yet, my batteries seem to last a pretty long time.


Hi SeismicCWave,


Very cool video.    

If I had a back yard like that, I would be in heaven and would be able to fly a lot more.
Currently, I have to drive about 30 minutes to get to my fly location. Not too bad, but
still a drive.


Later Everyone, iFly   High Five

LOL, I will be in heaven if I can fly anything over 6 minutes. Then again I am very conservative when it comes to draining battery packs. I tend to not drain them too much. Most of the time they actually have 50 percent charge left when I recharge them. I have packs that are very old and only these 1S packs that are giving me a hard time. Even the GNB 660 1S packs are doing quite well. Only these Tattu 1S and 2S that seems to be failing quickly. I thought they were supposed to be good.
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#54
(18-Apr-2024, 01:08 PM)mstc Wrote: For 1S lipos, there are two common designs, a rolled cell versus a folded cell (which appears much more block like with clear 90 degree edges). Folded cells will cost more, but perform better - less sag and longer flight times. As for the connectors, BT2, A30, and GNB27 all perform similarly (just don't go with PH2.0), but for a 65mm size I think BT2 has an advantage as it is the lightest. Also note you can fit a A30 battery into a BT2 connector with a little extra force (and vice-versa). All three will fit in a GNB27 connector, but not the other way around.

For smaller mah packs (below 450) I think in general they can be considered disposable, but on larger packs like 650/850 those seem to last more cycles?

Funny thing is that my GNB 660 mah 1S packs with PH2.0 connectors are doing the best. I charge them flying them recharge them (usually about 50%) and fly again. No problem so far. I even use a ph2.0 to XT30 adapter some times. Tongue
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#55
If you're mostly cruising around, then the practical differences are probably pretty small between the connectors. If you're running the motors hard, the difference is more notable. And yes I find my 650+ 1S packs last quite a few more cycles than the smaller ones. But if you enjoy long flight times, probably better to stick with 2S. I think you have a Mob8, that should give you some good flight times. A 3" 2S toothpick will easily get your in the 10+ minute range. If you like to get to the 20-30 minute range, a 3" 1S pick with a lion cell will get you there (but a very clumsy flier), I prefer a 4" 2S liion toothpick, but frankly my hands get stiff and sore flying for 30 minutes straight.... maybe if you had a really nice place to explore otherwise I really don't know what to do with all that flight time.
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#56
(18-Apr-2024, 07:45 PM)mstc Wrote: If you're mostly cruising around, then the practical differences are probably pretty small between the connectors. If you're running the motors hard, the difference is more notable. And yes I find my 650+ 1S packs last quite a few more cycles than the smaller ones. But if you enjoy long flight times, probably better to stick with 2S. I think you have a Mob8, that should give you some good flight times. A 3" 2S toothpick will easily get your in the 10+ minute range. If you like to get to the 20-30 minute range, a 3" 1S pick with a lion cell will get you there (but a very clumsy flier), I prefer a 4" 2S liion toothpick, but frankly my hands get stiff and sore flying for 30 minutes straight.... maybe if you had a really nice place to explore otherwise I really don't know what to do with all that flight time.

Yes I like to cruise around. Dive under the trees once in a while. I don't run the motors hard at all. They all come down quite cold. 

So I will consider these 300 mah packs totally disposable will will continue to collect more of them. 

I am in the process of ordering parts to build a 2S 3" toothpick. I received the canopy. I ordered the AOS 3 toothpick frame. Cannot decide whether to use 1204 or 1303 motors. They will be 5000 kV. 8000 kV if I absolutely have to but the lower kV will be quieter for cruising. I don't need anything over 10 minutes flying. I will get a bit bored. 5 minutes seems to be the perfect duration for me. Even when I fly wet fuel fixed wing. I can do the entire aerobatic maneuver sequence in 3 1/2 minutes. Then add take off and landing time and a bit of spare. So 5 minutes is fine. Then I got into EDF and they only lasted 3 minutes and I hated it. Besides I am getting too old and losing my reflex.

I do have place to explore but I have this issue about losing planes/quads. If a quad goes down in the forest there is zero chance of recovery. I took those beepers and GPS module off the quad. Big Grin Big Grin

The Mobula8 is a great little quad for outdoor but just a tad too big for my small house. That's why I went with the Meteor65. I should consider a 75 also.
[-] The following 1 user Likes SeismicCWave's post:
  • iFly4rotors
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#57
For cruising around, if you're not flying in stiff winds and flying analog, I'd go with 1103-7000 ish kv motors. It'll give you 12+ minutes, or you could simply split the pack into two flights. Otherwise if you like more power or maybe plan to carry a light action camera then go with the larger motors, 1204 and 1303 are quite similar and have nearly the same stator volume. The 1303.5 will be bigger though, but probably not for a cruiser. Yeah gather up your old EDF's and put them in a quad setup, maybe you can get a minute flight out of them  Big Grin

This a 3" pick with the 1103 motors, thinking back this probably traumatized me as I never flew far out again even though it has a GPS  on it now. I forget the details, but you can get pretty cheap 1103 motors and a 2S ELRS AIO with plugs. Quick and cheap build probably do it for under one Benjie, so even if it does get lost the pain is a little less.
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  • iFly4rotors
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#58
(18-Apr-2024, 09:03 PM)mstc Wrote: For cruising around, if you're not flying in stiff winds and flying analog, I'd go with 1103-7000 ish kv motors. It'll give you 12+ minutes, or you could simply split the pack into two flights. Otherwise if you like more power or maybe plan to carry a light action camera then go with the larger motors, 1204 and 1303 are quite similar and have nearly the same stator volume. The 1303.5 will be bigger though, but probably not for a cruiser. Yeah gather up your old EDF's and put them in a quad setup, maybe you can get a minute flight out of them  Big Grin

This a 3" pick with the 1103 motors, thinking back this probably traumatized me as I never flew far out again even though it has a GPS  on it now. I forget the details, but you can get pretty cheap 1103 motors and a 2S ELRS AIO with plugs. Quick and cheap build probably do it for under one Benjie, so even if it does get lost the pain is a little less.

Yikes, I was puckering watching the video. I think my pants would have been brown. The problem is behind my house is miles of dense triple canopy forest. There is really not much to see except for green trees. Well maybe some subdivisions farther away but not worth losing a quad over that. Big Grin I am conservative. I would have turned around as soon as I saw those statics in the goggle. 

Ok so 1204 and 1303 are pretty much interchangeable. 5000 kV is good for low noise. I just need to keep things light. I am still not used to keeping things light. I am debating on FC. I really like the SpeedyBee just because they have this app to connect to the iPhone. I have the F722 mini stack in a 3" analog quad and I really like it. I was thinking maybe a F405 mini stack. I do have a GEPRC AIO FC but the hole pattern is probably not going to fit. The frame has 20mm and 25.5mm mounting available but the GEPRC has a 26.5MM holes spread.

I am thinking about using the 1S Walksnail now that I get the Fat Shark HD Dominator fairly comfortable on my face. I have other quads to fly in the wind so I can do a purpose build for light weight. I sort of like a low light setup and my Caddx Ratel Pro is very good in low light. So I may go with analog and the Ratel Pro instead of Walksnail. Lots of options. Too many choices really. Then I have to decide how to improve this indoor flying. Some larger capacity batteries are showing up today. I just have to see how to sling them under the Meteor65 Pro (Ah back to topic finally Big Grin)

Ok here is my first quad back in 2011. That showed what is in my backyard. Not FPV. I didn't do FPV until this year. I did have FPV gear on helicopters and quads but that was for some one else to trip the shutter.

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#59
(18-Apr-2024, 07:04 PM)SeismicCWave Wrote: That begs the question about storage charge. Yes I have chargers that can put the into storage charge. However I fly them everyday. Multiple times a day. So is storage charge necessary since I need them fully charge all the time.

The rolled cell 1S LiPos don't like being left at full charge, so based on your flying schedule I think you are just going to have to accept that they won't have a very long life and treat them as disposable items. I have no personal experience of the folded cell 1S LiPos so maybe those hold up better if left fully charged.
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#60
A 1S whoop will be more flexible if you will also be flying it indoors, but a 85mm might be a little on the large side.

My first FPV-ish drone was a Walkera QR-X350 (around the same time) and the video on that was horrible. Then I got a ZMR250 mini quad and flew with a keychain camera (hey it did 1080p), and actually had a lot of fun with that. But when the boss bought me a Phantom 3 Pro, that gimbal stabilized video quality just completely blew my mind. Of course today its such a different story, just pick up a bnf or pick up a recording digital FPV system, add some software stabilization and you get video quality you wouldn't even dream of back then (or pick up a DJI mini).

For a WS build, maybe go with a 3S toothpick. 5000kv is good for 3S on 3" props. You should still get 6+ minutes if you don't go too heavy on the weight.
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