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Is 2 hours possible? (Lipo receiver pack run time) |
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(#1)
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RC-Monster Carbon Fiber
Offline
Posts: 52
Join Date: Oct 2008
Location: Kingston, Ontario
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Is 2 hours possible? (Lipo receiver pack run time) -
10.08.2009, 09:36 PM
So I got a lipo receiver in the Mugen. The last race I ran it was a 20 min main and I only used 300mah and its a 2020mah pack!! And that also includes some warm up time and a few practice laps, but lets say 20 minutes b/c its a easy number to work with.
So if I use 300mah in 20 min then that means I will only use 900mah in 60 minutes and 1800mah in 120 minutes. I just dont remember whats the deal about running the lipos down so low. Reason I am asking is b/c I am gonna be doing a 5 hour (thats right, 5 hour) truggy endurance race. 1 team of 4, one chassis. Not having to come in for 2 hours for a battery change would be amazing! So my question is, do you guys remember how low I can run the lipo? |
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(#2)
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That's All Folks!
Offline
Posts: 2,359
Join Date: Dec 2006
Location: in a VAN down by the RIVER
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10.08.2009, 09:40 PM
3 Volts per cell is the lowest voltage recommended for lipos.
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(#3)
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BMW M Power!
Offline
Posts: 1,910
Join Date: Jan 2006
Location: SoCal
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10.08.2009, 09:49 PM
Also, remember that there are many things that depend on how much current you use. A track with more turns will draw more than a track with less turns, so it is advised to run some sort of device that can monitor the pack (some sort of telemetry would be great here).
CRT .5: 7075 Ext Chassis, LMT1930/7, FP 25C 3S Lipos, MM |
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(#4)
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Fat Kid Engineering
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Posts: 3,634
Join Date: Jun 2009
Location: Hot as Hell West Central Coast Florida
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10.08.2009, 09:51 PM
Go to HC website you might be able to find a even higher MAH pack to fit the radio box, maybe 5 hrs on 1 battery might be feasable ?
You might be better off with a 3s and a volatge regulator in a 2000mah and be able to get 5hrs easier ? Someone with more knowledge should chime in sooner or later to assist more. |
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(#5)
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RC-Monster Carbon Fiber
Offline
Posts: 52
Join Date: Oct 2008
Location: Kingston, Ontario
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10.08.2009, 10:24 PM
Thanks guys. I think I will try to run 100 minutes per pack. That's an hour and 40 minutes. But I will check with my team what they wanna do.
But more input from the people here would be helpful. Thanks |
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(#6)
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Can't catch this...
Offline
Posts: 1,142
Join Date: Oct 2008
Location: baraboo, WI
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10.09.2009, 02:31 PM
strap a 2s 5000 to the side of the truck...
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(#7)
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Im not dark, Im over ripened! xD
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Posts: 5,607
Join Date: Sep 2007
Location: Westampton NJ
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10.09.2009, 06:54 PM
why not like a 4s 2500mah
and a castle BEC R/c Monster Team Driver Jq the car, LST, Sportweks turmoil pro Unconventional Techniques, Superior Results |
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(#8)
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Can't catch this...
Offline
Posts: 1,142
Join Date: Oct 2008
Location: baraboo, WI
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10.09.2009, 11:34 PM
Quote:
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(#9)
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i pwn nitro
Offline
Posts: 769
Join Date: Nov 2008
Location: with ur GF
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10.10.2009, 11:11 PM
lowering the voltage sounds like a waste to me.
think about it, ESC's are more efficient when going flat out (less FET on/off phases) so hence running a pack that can do 6v for the whole time would be better imo the porthole from the noob world an here has been opened!! that's how i got in. |
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