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othello · 10.16.2007, 08:14 AM

@Finnster
When first using a 1100kv (Fun 600/11) motor with 10s A123 i also didn't see spikes above 40-45A. With HV and the right motor the power is lesser wasted in heat. I also saw 100-200 Watt less on my eagletree with the same feeled amount of power in comparision to my 4s setup. At 1200-1400 Watt with 4s you will need 80-100A. At those Amp levels motor efficiency might be at 80% (at most with a Feigao). This translastes to 240-380watt in wasted heat and 960-1120Watt of usefull power. To reach 960-1120 Watt with 10s A123 you would only need 1050-1250 Watt because your motor still is in the 90% efficiency range (35-45A). So get yourself used that you will see lesser Amp and Watt spikes with the same feeled amount of power than your LV system due to higher overall efficiency ... which also translates to a slightly longer runtime.

Looking forward to your thread.

Sorry for offtopic (thread highjacking).

	(#22)
othello HV basher Offline Posts: 392 Join Date: Jun 2007 Location: Austria (Europe)	10.16.2007, 08:14 AM @Finnster When first using a 1100kv (Fun 600/11) motor with 10s A123 i also didn't see spikes above 40-45A. With HV and the right motor the power is lesser wasted in heat. I also saw 100-200 Watt less on my eagletree with the same feeled amount of power in comparision to my 4s setup. At 1200-1400 Watt with 4s you will need 80-100A. At those Amp levels motor efficiency might be at 80% (at most with a Feigao). This translastes to 240-380watt in wasted heat and 960-1120Watt of usefull power. To reach 960-1120 Watt with 10s A123 you would only need 1050-1250 Watt because your motor still is in the 90% efficiency range (35-45A). So get yourself used that you will see lesser Amp and Watt spikes with the same feeled amount of power than your LV system due to higher overall efficiency ... which also translates to a slightly longer runtime. Looking forward to your thread. Sorry for offtopic (thread highjacking). Brushless 1:5 custom 4wd Baja based on 1:8 truggy chassie Jazz 55-10-32, Neu 1515/2Y (1100kv), 9s2p A123 (27v), up to 3.1KW Latest video with eagletree Data inserts: Run on asphalt