(21-Apr-2024, 07:42 PM)Pathfinder075 Wrote: That canopy is sweet.  Must buy some of them myself.  They would suit some of my bigger builds just as easily as the smaller ones.

Yeah they are fairly universal and the hole spacings are not critical. Mine didn't bend too nice nor easily though. I think I am going to try and use a heat gun on the next one.

Battery tests.

I am really disappointed at the CNHL battery. They said 350 mah but I get only 2 1/2 minutes of flying (my style). Whereas I am now getting 3 1/2 minutes from my "questionable" Tattu. I didn't realized I bought 10 of these CNHL packs.

The Dogcom 300 mah is not that good either.

However the BetaFPV Lava is doing quite well. They have potential.

I can't wait to try the New Bee Drone Nectar Gold.

That's the rub with CNHL. You often don't get as much flight time per pack, but overall you get more flight time. Over here (in the sales), I can get two 2x 3S 450 CNHL Lipos for £10 or less. I can buy one Tattu 3S 450 for the same price. The CNHL packs give me about 4-5 mins of freestyle and up to 6-6.5 mins of cruisey type flying, depending on how aggressive I am on the throttle. The Tattu 450 will give me 5-6 mins of aggressive freestyle or 7-8 mins of cruisey type flying. So CNHL I get two packs but one pack lasts less time, but overall I get about 20-25% more flight time for the money.

So I tend to run both, but the Tattu is really good for not sagging when you are flying like a speed demon, so if I want to do some specific trick that is hard on the batteries I tend to run Tattu. But if I am going to do some light freestyle and just fly and dive for the fun factor, I use CNHL. Everything is calculated and I use the best battery for the job. normally i go to where I'm flying and carry maybe twelve CNHL and four to six Tattu. I will fly CNHL most of the time, but will use the Tattu packs at the end when I'm really in the zone and ready to rip hard.

(22-Apr-2024, 09:54 PM)Pathfinder075 Wrote: That's the rub with CNHL.  You often don't get as much flight time per pack, but overall you get more flight time.  Over here (in the sales), I can get two 2x 3S 450 CNHL Lipos for £10 or less.  I can buy one Tattu 3S 450 for the same price.  The CNHL packs give me about 4-5 mins of freestyle and up to 6-6.5 mins of cruisey type flying, depending on how aggressive I am on the throttle.  The Tattu 450 will give me 5-6 mins of aggressive freestyle or 7-8 mins of cruisey type flying.  So CNHL I get two packs but one pack lasts less time, but overall I get about 20-25% more flight time for the money.  

So I tend to run both, but the Tattu is really good for not sagging when you are flying like a speed demon, so if I want to do some specific trick that is hard on the batteries I tend to run Tattu.  But if I am going to do some light freestyle and just fly and dive for the fun factor, I use CNHL.  Everything is calculated and I use the best battery for the job.  normally i go to where I'm flying and carry maybe twelve CNHL and four to six Tattu.  I will fly CNHL most of the time, but will use the Tattu packs at the end when I'm really in the zone and ready to rip hard.

Yeah, even with my "cruising" around the CNHL pack sags a lot. I will fly them just because I have so many and I will just treat them as disposables. So far the darn Tattu 1S is really doing the best.

TBH, that's all i class CNHL as. In terms of Lipos they are heavier than most other brands and don't provide quite as much energy. Mine so far are going on 15 months without failing so maybe it's an unfair description, but they are cheap and easy to source. I generally run three brands, CNHL, GNB and Tattu. I class them in the same order. Price wise they are ordered the same. but so far all of my packs are still going strong. My GNB 2S packs are almost two years old and have been cycled maybe 200 times, probably more.

But 1S is a weird size and it seems the properties are completely different to every other size. I guess you need to remortgage your home so you can afford more Tattu packs.

(23-Apr-2024, 02:01 AM)Pathfinder075 Wrote: TBH, that's all i class CNHL as.  In terms of Lipos they are heavier than most other brands and don't provide quite as much energy.  Mine so far are going on 15 months without failing so maybe it's an unfair description, but they are cheap and easy to source.  I generally run three brands, CNHL, GNB and Tattu.  I class them in the same order.  Price wise they are ordered the same.  but so far all of my packs are still going strong.  My GNB 2S packs are almost two years old and have been cycled maybe 200 times, probably more.

But 1S is a weird size and it seems the properties are completely different to every other size.  I guess you need to remortgage your home so you can afford more Tattu packs.

The CNHL 1S 350 mah pack is actually lighter than the BetaFPV or Tattu 300 mah packs. Only by fraction of a gram.

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(23-Apr-2024, 02:01 AM)Pathfinder075 Wrote: TBH, that's all i class CNHL as.  In terms of Lipos they are heavier than most other brands and don't provide quite as much energy.  Mine so far are going on 15 months without failing so maybe it's an unfair description, but they are cheap and easy to source.  I generally run three brands, CNHL, GNB and Tattu.  I class them in the same order.  Price wise they are ordered the same.  but so far all of my packs are still going strong.  My GNB 2S packs are almost two years old and have been cycled maybe 200 times, probably more.

But 1S is a weird size and it seems the properties are completely different to every other size.  I guess you need to remortgage your home so you can afford more Tattu packs.

The CNHL 1S 350 mah pack is actually lighter than the BetaFPV or Tattu 300 mah packs. Only by fraction of a gram.

All of mine are heavier. Usually by around 10g than the equivalent Tattu or GNB.

I also have a bunch of CNHL 1S PH2.0 packs somewhere. Bought them 18 months ago, never used them, got 16 of them. Just had a look, all 450mAh non-HV, never used so far. I was going to convert them to BT2.0, but it's unlikely to happen. I'll find some other way to use them. Maybe daisy chain them into bigger packs or parallel them or both. A 2S2P could be useful.

So I started off with the BetaFPV Meteor 65 Pro. Not happy with the flight time. So I converted it to a 65 Air with smaller motors. Turned out great and I get 4 1/2 minutes from those 300 mah batteries I bought (lots of them). Then I decided to make a slightly lighter 65 Pro with a set of smaller motors and that worked also. I also get over 4 minutes from the 300 mah packs.



Then I took the motors (0802 19500kV) from the BetaFPV Meteor65 Pro and try to make something so I won't waste them. I went bare bone.



It is ok but still not happy with that. For some reason the 0802 motors just do not like those 300 mah packs.

So I took it back up to a 75mm and ordered some different batteries.



I tried those 450 mah pack and even those 660 mah packs and neither of them gave me more flight time.





Then today the BetaFPV Lava 550 packs came.



The battery has excellent capacity and is not too heavy. It is between the 450 mah and the 660 mah. 

The good part is that it fits the 75mm frame battery holder very well.



The best part is that now I get 5 1/2 minutes comfortably in the house with those packs. I can actually push it to exactly 6 minutes if I take it all the way down to low voltage warning which I set at 3.45V. Nowhere near as low as some of your guys because I am very conservative.

So finally I am out of the 3 minute flight duration rut with all three of these little whoops. Even my 85mm can fly for 5 minutes but that's on 2 cells. My TMotor 120 Feather can go for 7 minutes with those 660 mah packs but that's a low kV motor and big props.