Thinking of Buying a 920

[thoneter]

with those adapters... it's a plug & play... no solder. You'll get better time and I think Pat's indicated better performance from the Zippy Compact.

I like the idea of having an extra battery for backup. A lot of the guys on the FB groups are complaining of their H's falling out of the sky. My guess is that many are forgetting to lock them in and to embarrassed to admit it. I did read through all of the battery replacement posts.

Glad to have you guys out doing the beta testing.

 

[thoneter]

We may need to meet up this Spring, when the flying is a bit more enjoyable... that's probably about 3 hr drive?

4 hours unless you drive like a maniac. A bunch of guys from MN are going to get together this summer in Duluth. If you want a link on the FB page I can post it to you.

 

[Dougcjohn]

You noticed the Graphene 8Kmah is a single pak and the Zippy Compact 5Kmah (10Kma total) is a Dual Pak.

 

[thoneter]

I did. Just from the manufacturer's hype the hype seemed better for the graphene but then again it's sales.

 

[thoneter]

Security Check Required This is a sub group to Yuneec Owners Group.

 

[PatR]

Don’t do the Graphene. Using just one makes it a fatal single point of failure. Max flight time is a little under what a pair Zippys provide. At 3.5v/cell the graphene pack experience voltage drop much faster than a standard lipo cell. The adapter cable is also more difficult to mage.

BTW, I’m sure you were referring to the other guy when you were referencing dinos[emoji4]

If you ask nicely and agree to pay for the cost of the parts and postage I could be coereced into making a couple adapters. Unfortunately I can’t buy the parts as cheap as the Chinese can. Estimated cost; about $12.00

You don’ want to buy the HK XT90 to EC5. Wrong plug. Has to be XT90 to EC3.

 

[Dougcjohn]

You don’ want to buy the HK XT90 to EC5. Wrong plug. Has to be XT90 to EC3.

Opps, one of those knew it, saw listing and focused on the wrong one. Hopefully you didn’t order yet.
Short; xT90 male to EC3 Female
https://www.amazon.com/XT90-connector-Banana-adapter-battery/dp/B01N1YBAUB

 

[thoneter]

Don’t do the Graphene. Using just one makes it a fatal single point of failure. Max flight time is a little under what a pair Zippys provide. At 3.5v/cell the graphene pack experience voltage drop much faster than a standard lipo cell. The adapter cable is also more difficult to mage.

BTW, I’m sure you were referring to the other guy when you were referencing dinos[emoji4]

If you ask nicely and agree to pay for the cost of the parts and postage I could be coereced into making a couple adapters. Unfortunately I can’t buy the parts as cheap as the Chinese can. Estimated cost; about $12.00

You don’ want to buy the HK XT90 to EC5. Wrong plug. Has to be XT90 to EC3.

I'm sure I meant dynos. Enthusiastic individuals with lots of stored energy. I do truly appreciate the feedback on the graphene vs the zippies. Bummer the prices keep shooting up.

My 920 is suppose to have been shipped tonight from California. With it being almost twice the size of the 480's I have I'm sure the massive size will hit me when I actually have it at my home.

 

[thoneter]

The Amazon link items were out of stock. I did find these on Ebay. No wires XT90 male connector to EC3 Banana jack female adapter RC lipo battery | eBay

 

[thoneter]

Opps, one of those knew it, saw listing and focused on the wrong one. Hopefully you didn’t order yet.
Short; xT90 male to EC3 Female
https://www.amazon.com/XT90-connector-Banana-adapter-battery/dp/B01N1YBAUB

It appears to be obvious but I wanted to ask anyway. I'm assuming that you leave the adapters connected to the batteries for charging purposes and not having to buy extra connectors.

 

[thoneter]

OK 1 more rookie question. I did do a search but didn't find the answer. Can you pair the 5000 zippy with the old Yuneec battery? What issues arise from pairing these together? And how come nobody answered my question about Adam having a naval or not?

 

[Dougcjohn]

Adam: I’d guess he wouldn’t if created not conception since No per-Se Mother or womb.

The Connectors are at your requirements and what ends your charger requires. No harm to use or not use, extra connection would add a very very small amount of resistance... no concern.

I don’t know why you want to mix a poor performing 9C 4000ma OEM with a 25C 5000ma. Theoretically, if you kept your current draw to the lower spec battery, and ended flight time based on smaller ma battery drain, it could be used electrically.

But real life environment, not practical and risk of damaging lower spec battery. If your draw current is higher than lower spec battery (9C), the lower spec battery could be damaged by overdischarge and if your flight time exceeded the lower spec battery performance could risk damaging smaller capacity battery by draining below minimal LiPo voltage.

I’d use equal pairs, in addition not required but I’d keep my sets grouped... set1, set2.

 

[thoneter]

Adam: I’d guess he wouldn’t if created not conception since No per-Se Mother or womb.

The Connectors are at your requirements and what ends your charger requires. No harm to use or not use, extra connection would add a very very small amount of resistance... no concern.

I don’t know why you want to mix a poor performing 9C 4000ma OEM with a 25C 5000ma. Theoretically, if you kept your current draw to the lower spec battery, and ended flight time based on smaller ma battery drain, it could be used electrically.

But real life environment, not practical and risk of damaging lower spec battery. If your draw current is higher than lower spec battery (9C), the lower spec battery could be damaged by overdischarge and if your flight time exceeded the lower spec battery performance could risk damaging smaller capacity battery by draining below minimal LiPo voltage.

I’d use equal pairs, in addition not required but I’d keep my sets grouped... set1, set2.

My only concern is that their kids might make fun of him for not having a naval.
My thought was that would possibly help with the low battery warning but I'm not smart enough to know what the downside to pairing the 2 together would be. I also thought it might help to extend the use of the older Yuneec batteries.

I do appreciate the info from you guys. On the st16 you can change the rates of the joysticks, camera pan etc. Can you do the same with the st24?

 

[PatR]

OK 1 more rookie question. I did do a search but didn't find the answer. Can you pair the 5000 zippy with the old Yuneec battery? What issues arise from pairing these together? And how come nobody answered my question about Adam having a naval or not?

Really bad idea for a couple of reasons. The size of the Zippy battery is such that you could only use one of them and one of the Yuneec batteries. That leaves you 1000mA short of the available capacity you would have had with a pair of Zippy's, which means that first low voltage warning would have occurred a lot sooner than it could have. Second is that using different capacity batteries cause the higher capacity battery to try to "balance" the lower capacity battery. There's nothing in the system to prevent current reversal back to the battery supply. Bad things can and do happen when a larger battery is trying to balance the charge level of a smaller battery. In a perfect world we would match all the cells used in a battery and when using multiple batteries we would always try to match all the batteries as closely as possible. The world is not perfect so small discrepancies are acceptable but large ones are not.

A pair of Zippy batteries provides more flight time than a full set of three Yuneec batteries, and a much delayed first low voltage warning, so trying to find new ways to employ the Yuneec batteries is a waste of time, and possibly money. They are going to fail soon enough as it is so just use them in sets until they have reached end of life. I don't know how many Yuneec batteries you will be receiving but don't buy any more of them. The greatest "problem" I have encountered with the Zippy batteries is that first low V warning lasts a lot longer than it does with Yuneec batteries. Takes a comparatively long time to "burn through" the voltage range that triggers the warning, which runs from mid 21.8v to the bottom of 21.7v. After that you have quite a bit of time left where no warnings are interfering with the screen visuals.

As for Adam, I wasn't there and lacking first hand visuals it would be folly to guess Too much "Chicken or egg" in that one, although I tend to agree with Chris where divine creation would eliminate the need for a navel.

 

[PatR]

I haven't tried the "no wire" connectors. As long as they don't make the combined length of all the connectors too great to fit vertically in the battery opening they should work. If they end up too long they would interfere with closing the battery bay door which in turn would generate a few warnings to be displayed that are not mentioned anywhere in Yuneec documentation. The door must be closed to fly. Alternatively, a circuit has to be closed through the magnetic latches used to secure the door to the airframe. You should check continuity before ever using them though, and wiggle them a few times as part of the continuity check process to assure the assembly won't break down in flight.

 

[thoneter]

Much for my little brain to absorb. So if you were me and I know your thankful your not, would you go with the "no wire" or the built ones for $12? I've got 6 Yuneec batteries that are coming with the 920. I had no intention on buying any more Yuneec batteries. I buy the Ultra X for my 480 for 1/2 the price. Only 2 batteries I've had go bad are the Yuneec ones. I'm sure the Ultra X will crash and burn at some time.

On the graphen vs the zips I agree that 2 are redundant and therefore desired. I need to get the 920 so I can do hands on and get acquainted. I have a hard time visualizing this over the forums even with the pics that are uploaded. I love the 360 pans built into the 480. I'll have to devise a way to do them manually on the 920. Are their rate changes that can be made on the st24? The h520 is missing a lot of these features which is baffling. Not sure how Yuneec missed the boat on those features.

 

[Dougcjohn]

On the XT90 to EC3 stub no wires.
I just got mine, I'll see how they fit later tonight and let you know.

 

[Dougcjohn]

Much for my little brain to absorb. So if you were me and I know your thankful your not, would you go with the "no wire" or the built ones for $12? I've got 6 Yuneec batteries that are coming with the 920.

Then again, the 'Ole Dino looks to make some pretty nice Connector Leads!
Dang good price offered to ya, to have the whip version if needed. I'm not motivated to get the tools out to make my own when available online... I'll make the whips if the stubby combined length is to long.

 

[thoneter]

I'm pretty sure the 920 is being shipped but I'm holding off on any purchases until I see the whites of the 920 eyes. I also need to play with it for a while. I really do appreciate you Dyno's feedback.

 

[Dougcjohn]

I'm pretty sure the 920 is being shipped but I'm holding off on any purchases until I see the whites of the 920 eyes. I also need to play with it for a while. I really do appreciate you Dyno's feedback.

No Rush to buy... you have 2 full sets to keep you busy & getting the feel for the H920.

I learned the bulk of the H920 data from the older Dino... great resource! But still a Old Dog!