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HomeAircraftHelicopterCrashed? Discussion and Photos › Brand new Nanotech 5000mah 45C explodes in midair
05-11-2011 05:24 PM  7 years agoPost 1
rudyy

rrElite Veteran

E. Amherst, NY

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I balance charge my brand Nanotech 5000mah 45C at 2A. Everything is ok during charging, and each cell is very well balanced to 4.2v. Then I bring my 550e for a maiden flight. Hovering is looking good in normal and idle up mode. I bring it down to adjust the DR rate of my ail and elev. Then I bring it up again to idle up mode and do a few tictocs, and all of a sudden, I hear a loud pop and the battery ejects from the 550e with plastic wraps falling all over the place. At least one of the cells catch fire and white smoke keeps pouring out.

I have no idea what is going on?

Rudy

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05-13-2011 03:28 PM  7 years agoPost 2
jamming

rrApprentice

rockport,wa

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Crap ! That sucks ! Are these batteries normally reliable, I fly only thunderpower and hyperion ! Wonder if a internal short did it ! Pics ?

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05-13-2011 03:46 PM  7 years agoPost 3
Tyler

rrElite Veteran

Chicagoland area

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Sorry about your combustion. Hope the heli and electronics survived.

Perhaps I am overly cautious, but I don't consider tic-tocs a "battery break in" manuever. I am gentle for about five cycles before entering any 3D, especially power hungry moves.

Of course I am new to larger electrics. Therefore very cautious and conservative.

Tyler

Enjoy things that money can buy IF you don't lose the things money can't buy.

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05-14-2011 12:18 PM  7 years agoPost 4
rudyy

rrElite Veteran

E. Amherst, NY

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Further Investigation
it looks like I did not strap the lipo tight. It fell out and hit the blade, and exploded in midair. A good lesson to learn from a bad mistake.

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05-16-2011 06:35 PM  7 years agoPost 5
V-22 Osprey

rrVeteran

Sidney, Maine

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That would do it!

"220-221 whatever it takes"

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HomeAircraftHelicopterCrashed? Discussion and Photos › Brand new Nanotech 5000mah 45C explodes in midair
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