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Tornado 920 plus/ zippy 5000mah batteries

PatR

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That’s the best part. Using a brand new set of 3 Yuneec batteries with a total capacity of 12,000mA, when flown lightly with the CGO-4, provides up to 25 minutes of flight time. Unfortunately, successive charge cycles have demonstrated that flight time progressively reduces after only a few charge cycles. Double digit IR values for every battery cell indicates Yuneec’s brand new 920 batteries may be quite old. Another disturbing fact is the first voltage warning occurs relatively soon when using Yuneec batteries.

A pair of after market 5,000mA batteries, total capacity 10,000mA, consistently delivers a little over 21 minutes of flight time with the first voltage warning occurring in flight time well after the stock battery warning. In addition to that the voltage depletion rate of the after market batteries is slower after the first warning.

Making things even more interesting is that a single 8,000mA GiFi battery provides pretty much the same results as when using a pair of 5,000mA after market batteries.

For icing on the cake a set of 3 Yuneec batteries will set you back over $400.00. They are sold in pairs for $279.00/pair. A set of 2 after market batteries can be as low as $100.00 for the pair. The average cost usually runs in the $130.00-$140.00 range. A single GiFi runs about $118.00.

I’ve tested the above extensively with extremely consistent results.
 
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PatR

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All I said was I am actually carrying LESS weight than flying with the STOCK 3 batteries. :)
That weight differential was noted during my early testing of the two battery flight testing experiments. If you had not read that thread you would not have been aware of it until now.
 
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Received the Gens ace 5000mAh 6S1P 22.2V 45C Lipo Battery Pack with EC5 Plug batteries acouple of days ago. They come with EC5 connectors and monster 8ga? lead cables. I did a trial fit and 2 of these just fit in the compartment without changing the box.

Wondering if anyone has opened up the 920+ and changed the EC3 male connectors on the board to EC5?

Just thought I'd ask before I shorten the leads and change the battery connectors to EC3......
I changed mine out for xt-90 connectors
 
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Although the Gens Ace 6s 5000 mah 45C batteries work fine and just fit the box, the battery I would like to get (but is currently out of stock) is the Zippy compact 6s 5000mah 25C as they are cheaper and a bit lighter. A "C" rating higher than 25-30 isn't necessary, but it seems that most batteries now are trending towards a higher C rating which adds unnecessary weight. There really are only a few batteries that meet the physical size limitations and have a capacity of at least 5000mah. The objective is to get close to the "stock" mah capacity of 12000mah (3 x 4000) with 2 batteries, even though the stock Yuneec batteries available now are past their BB date and are $$$$ expensive. So, it seems that the best I could find are the Gens Ace or the Zippy compact (used in pairs) to get a total of 10000mah. I doubt if any 6000mah batteries would fit the compartment which means the battery can be no bigger than about 48mm wide x 48mm high x 170mm long. Both the Gens Ace and Zippys just fit as a pair.
 
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I use them for over a year, and they are perfect. Flight time with CGO4 20 min. And with the CGO3+ 33 min.
 
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I'm going with my old lawn mower battery just to get a rise out of you guys
 
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Yes I'm a poet and know it
 
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I have the same problem 15 minutes top on flight but I’m getting 3 new batteries warranty from yuneec, so hopefully it’ll work and I can get 30 plus min of flight time
 
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I have been watching to see if the zippy 5000 mah 6s. Batteries would come back in stock at hobby king and they never have so I chatted with them and their distributor has ended. The supply of these batteries.
 

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