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Rotorrific
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« Reply #15 on: February 05, 2010, 05:08:38 AM » |
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The C rating won't change your flight times. For longer flight times, you need larger capacity, meaning 800mAH instead of 600mAH for example. The trade off is weight. The larger capacity batteries are physically larger and heavier. You might have problems fitting it, and it may affect the CG (center of gravity) during flight.
Thanx much.  I appreciate your reply.  Happy flying to all.  |
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Fly, Crash, Repair.  Esky HBFPV2 w/ SuperBlades XP, EXI 450 kit coming soon... "A bird in the hand isn't worth anything unless it can fly."
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Rotorrific
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« Reply #16 on: February 05, 2010, 07:53:46 PM » |
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I got my Turnigy 1000mAH 11.1v 25C batteries yesterday. I tried them today and my 4-in-1 got fried.   I connected the battery and I smelled smoke. Will those batteries do that to a 4-in-1 or did I accidently attach the connectors together wrong? + to - and - to +.  I think that's what I did.  Just wanted to ask before the other 4-in-1 comes. I don't want to hook those batteries to it if they're going to do that.  I definatley won't hook them backwards again. duh...  |
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Fly, Crash, Repair. Esky HBFPV2 w/ SuperBlades XP, EXI 450 kit coming soon... "A bird in the hand isn't worth anything unless it can fly."
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tcprogrammer
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« Reply #17 on: February 05, 2010, 10:51:41 PM » |
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WHOA!  You replaced a 7.4 volt battery with an 11.1 volt battery? That is probably what fried the 4-in-1 right there. Unless the 4-in-1 specifically states that its rated for 11.1 volts, then I would not attempt to use those batteries again with that 4-in-1. |
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Part time rc pilot, full time rc mechanic!
MSH Protos - DS3517 cyclic, stock motor/esc, Quark+DS650 tail
CX450 SEv2 - DS410M cyclic, scorpion 2221-8/60Amp, Quark+MKS8910 tail
HBFP v1 - stock w/ xtreme metal hub and lotsa CA glue
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Rotorrific
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« Reply #18 on: February 06, 2010, 08:53:36 AM » |
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WHOA! You replaced a 7.4 volt battery with an 11.1 volt battery? That is probably what fried the 4-in-1 right there. Unless the 4-in-1 specifically states that its rated for 11.1 volts, then I would not attempt to use those batteries again with that 4-in-1. It was an 11.1v battery. I think I just crossed the connections and fried my 4-in-1.  |
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Fly, Crash, Repair. Esky HBFPV2 w/ SuperBlades XP, EXI 450 kit coming soon... "A bird in the hand isn't worth anything unless it can fly."
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tcprogrammer
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« Reply #19 on: February 06, 2010, 02:07:53 PM » |
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It was an 11.1v battery. I think I just crossed the connections and fried my 4-in-1. You're earlier post said it was a 7.4v 600mAH battery. Hence my concern. |
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Part time rc pilot, full time rc mechanic!
MSH Protos - DS3517 cyclic, stock motor/esc, Quark+DS650 tail
CX450 SEv2 - DS410M cyclic, scorpion 2221-8/60Amp, Quark+MKS8910 tail
HBFP v1 - stock w/ xtreme metal hub and lotsa CA glue
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Rotorrific
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« Reply #20 on: February 06, 2010, 03:58:52 PM » |
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It was an 11.1v battery. I think I just crossed the connections and fried my 4-in-1. You're earlier post said it was a 7.4v 600mAH battery. Hence my concern. Oh, sorry. My son's D-Fly III Sharp co-axial uses a 7.2v 600mAH Ni-Mh battery so I converted it to a 7.4v 800mAH 15C Lipo battery. My 11.1v 1000mAH 25C Turnigy in my HBFPV2 is the battery I crossed the connectors on. I was just making sure if it was the battery that shorted my Bee or me crossing the connectors. Thanx for the replies. |
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Fly, Crash, Repair. Esky HBFPV2 w/ SuperBlades XP, EXI 450 kit coming soon... "A bird in the hand isn't worth anything unless it can fly."
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djem
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« Reply #21 on: February 08, 2010, 07:54:50 AM » |
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I think one of my 11,1 v lipo's is'nt good anymore. It blows up a little but stil works normal. It is a mistery 25 c. What do you think guy's, don't use it anymore or keep using it 'till the end? Charging it at this moment and everything looks normal. |
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P3tras
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« Reply #22 on: February 08, 2010, 08:36:05 AM » |
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You means it puffs a little? You can use it till it looks like a pillow  |
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Esmart (heli, grounded), Blade EPP (airplane ,still somehow flying), Nitro trainer (airplane, grounded)  |
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Rotorrific
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« Reply #24 on: February 08, 2010, 07:01:46 PM » |
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HELP!! My son has a D-Fly III Sharp co-axial 3ch helicopter which carries a 7.2v 600mAH Ni-Mh battery. I upgraded it to use a 7.4v 800mAH 15C 2S lipo. I tried it today and it wouldn't lift-off. It just spun up and didn't move.  I noticed the two motors it has were very hot to touch. Is there another battery I can use so that won't happen or are the motors going bad?
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« Last Edit: February 08, 2010, 07:02:50 PM by Rotorrific »
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Fly, Crash, Repair. Esky HBFPV2 w/ SuperBlades XP, EXI 450 kit coming soon... "A bird in the hand isn't worth anything unless it can fly."
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