3S Lipo Warm after steady flight

[kroozing]

Hi all,
I have just finished a hk250 and took it for it's maiden today, i have 2 850mah Turnigy-Nano lipos and after a steady flight of 4 minutes the lipos are warm. Is this normal?
They are by no means red hot just warm to the touch and stay warm for sometime afterwards.
When i fly my trex 450 the lipos are cold.

I can post specs of heli if needed and i am running a 250sp motor with align blx15 esc.

Cheers

[Stanley Speel]

Yes it's normal - nano techs (I had 1100mahs 3 cells) are pretty bad. Also remember hovering required more power than FF so that may have also been why.

[kroozing]

Brilliant, Cheers.
Would you recommend ditching the Turnigy lipos? If so do you have any recommendations.

[Delarado]

warm lipos are fine, not a problem at all mate. I use em to keep my hands warm at the field!

[kroozing]

I suppose that is a plus side, especially with the poor weather in this so called summer.
Cheers

[Stanley Speel]

no don't get rid of them - just don't expect them to last very long.

I used Loong Max tipples and Gens Ace in my Gaui X2 - neither were brilliant (only 20C) but they both came down cooler and with more charge left in them than the nano-tech 45-90cs.

I guess you can't go wrong with the OptiPower 850mah lipos but at £12.50 each they are quite expensive. Maybe also look at these ones:

Gens Ace – 3S 800mAh 20C « ElectriFlyer

[kroozing]

Thanks, I will try a couple of the Gens Ace and see how i get on.