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Dec 02, 2019, 02:32 PM
Flying every chance I get!
Micubano's Avatar
Quote:
Originally Posted by aerofundan
Last hours of the PA Black Friday - Cyber Monday SALE!! visit www.precisionaerobatics.com for more info  
I already bought 2. Leave me alone!
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Dec 02, 2019, 02:42 PM
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aerofundan's Avatar
Quote:
Originally Posted by Micubano
I already bought 2. Leave me alone!
LOL!still have time to get a 3rd one!! you only live once
Dec 02, 2019, 03:11 PM
Registered User
Quote:
Originally Posted by blissinindy
Nothing for Cyber Monday? Anybody?
Yes...nothing...no money left!

4 helis and lots of parts coming!
Dec 02, 2019, 10:18 PM
Registered User
Yes, I missed Ovonic lipo on Black Friday, but found that Cyber Monday is still the same discount as Black Friday
https://www.ampow.com/blackfriday
Dec 02, 2019, 10:28 PM
Toycar racer
Dbz619's Avatar
Quote:
Originally Posted by Brucesm
Yes, I missed Ovonic lipo on Black Friday, but found that Cyber Monday is still the same discount as Black Friday
https://www.ampow.com/blackfriday
some good deals there. i was able to use the code, TAQ, last Friday on top of the sale. Saves an extra 5% on top of the sale prices
Dec 03, 2019, 07:09 PM
MK
MK
Registered User
How do those Ovonic lipos perform?
Dec 10, 2019, 12:42 AM
RV1
RV1
Registered User
Quote:
Originally Posted by Edu.wes
Bah so you bought the RXSR Cinebee I was thinking about


You sure itís the entire stack and not just the FC? The drop down just says FC
Sorry I missed your reply.
You turned out being right, received FCs only, unfortunately.
Cinebee is fun though...
Jan 17, 2020, 04:52 PM
Custom User Title
Quote:
Originally Posted by MK
How do those Ovonic lipos perform?
I have a few 3S 1300mAh 80C that perform great in a couple 38" and 43" planes that pull up to 55A.

I recently bought some 3S 3000mAh 50C for use in a 60" plane in a 6S configuration where amp draw can peak at 75A, but more typically is around 55A max, and they sag something terrible.

The first flight (flight_1) I landed immediately after take-off because I thought I'd accidentally put discharged batteries in it. Telemetry voltage report was down to 19.6V right after take off, and I normally land at 21V. Looking at the telemetry data afterwards, the voltage actually sagged to 16.6V

For comparison, I've flown the same plane with Zippy 2200mAh 30C/40C burst, which sagged, but nowhere near as bad as the Ovonics. Usually I use Hyperion G7 2600mAh 20C/50C burst, which perform much better than the Zippys.

I attached voltage telemetry from three flights with the same plane (5 minutes between flights). Flight_1 was the one where I landed right away, so it's short. As you can see, the Ovonic batteries did poorly, even though those flights were a lot less demanding on the batteries than the Hyperion flight.

I've sent two emails to ampow expressing my concerns with no response.

Videos of flights for comparison:

Hyperion (flight_2):
1-3-2020 Future Model 60" Slick 540 PP #2 (5 min 54 sec)


Ovonic (flight_3):
1-3-2020 Future Model 60" Slick 540 PP #3 (6 min 37 sec)
Jan 18, 2020, 06:36 PM
MK
MK
Registered User
Thank you for the feed back and the graphs. Certainly tells a story.


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