Futaba 7C Lipo Question

bugsmasher · 12-13-2011, 11:45 AM

I bought a 3s transmitter lipo for my 7C. The way I figure it the 9.6 volt pack that came with the transmitter would actually be about 8x1.4volts = 11.2 volts fully charged where as the lipo would be 3x4.2 volts = 12.6 volts fully charged. Is this too much voltage for this transmitter? Thanks for any input.

gelatmi1 · 12-13-2011, 01:20 PM

On my old T9ZAP i have a 3s lipo pack and it works very well. No problem at all !!!
Also other people at the field use 3s and all is fine.

kingmeow · 12-13-2011, 03:15 PM

I have a 7C that uses a 3S, 2500 mAh lipo and it works great! Nothing like 10 hours of run time before recharging!

bugsmasher · 12-13-2011, 03:17 PM

Thanks for the info guys. I thought about charging to the storage charge of 11 volts but that kind of defeats the purpose of having a lipo in it.

gbidwell · 12-13-2011, 04:38 PM

get a life pack...lipos dont like being stored at full charge. They lose 20% capacity per year at full charge. Life packs dont care and can be deaply discharged and Have a lower voltage.

Hyperion 2100mAh TX LifePo4 pack...thats what I use. 10 hours run time no worries.

pinguin · 03-02-2012, 04:28 AM

I also use LiFe batt from HK, but only at 1800mah.
The question is, how low can I discharge this battery? I think this battery is rated at 3 - 3.3v, so I can use it until 9v. Is it correct?
What is the lowest working voltage for 7C ?

12-13-2011, 11:45 AM	#1
bugsmasher Registered Users Join Date: Jul 2009 Location: Toronto	Futaba 7C Lipo Question I bought a 3s transmitter lipo for my 7C. The way I figure it the 9.6 volt pack that came with the transmitter would actually be about 8x1.4volts = 11.2 volts fully charged where as the lipo would be 3x4.2 volts = 12.6 volts fully charged. Is this too much voltage for this transmitter? Thanks for any input.

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12-13-2011, 01:20 PM	#2
gelatmi1 Registered Users Join Date: May 2006 Location: Italy	On my old T9ZAP i have a 3s lipo pack and it works very well. No problem at all !!! Also other people at the field use 3s and all is fine.

12-13-2011, 03:15 PM	#3
kingmeow Registered Users Join Date: Jul 2011 Location: NJ	I have a 7C that uses a 3S, 2500 mAh lipo and it works great! Nothing like 10 hours of run time before recharging!

12-13-2011, 03:17 PM	#4
bugsmasher Registered Users Thread Starter Join Date: Jul 2009 Location: Toronto	Thanks for the info guys. I thought about charging to the storage charge of 11 volts but that kind of defeats the purpose of having a lipo in it.

12-13-2011, 04:38 PM	#5
gbidwell Registered Users Join Date: Apr 2010 Location: Melbourne, Australia	get a life pack...lipos dont like being stored at full charge. They lose 20% capacity per year at full charge. Life packs dont care and can be deaply discharged and Have a lower voltage. Hyperion 2100mAh TX LifePo4 pack...thats what I use. 10 hours run time no worries.

03-02-2012, 04:28 AM	#6
pinguin Registered Users Join Date: Apr 2009 Location: Indonesia	I also use LiFe batt from HK, but only at 1800mah. The question is, how low can I discharge this battery? I think this battery is rated at 3 - 3.3v, so I can use it until 9v. Is it correct? What is the lowest working voltage for 7C ?