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battery size for jet cat 80

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Old 05-14-2018, 11:45 AM
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kork
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Default battery size for jet cat 80

I have a jet cat 80 and wanting to buy my pump battery. I am running two pulse 3200 lipos with my spectrum power safe 9 channel receiver.
I contacted jetcatusa and they said my 2 cell lipo is also good for the ecu I have.
My question is 3200 enough for a good day of flying? or should I be running something else?
I would like to stay the same 3 batts for charging purposes.
I see some people are running 9.9 volt battery's? what advantage does that have?

Sorry if I ask a lot of questions but I don't have anyone close to me for help.
Jason
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Old 05-14-2018, 01:21 PM
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Len Todd
 
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My P-100 uses about 300-400 mah per start and 7 minute flight.

In the past, I have found that JCs will not start after about 1/2 of the mah of many different LiPo batteries are used up (e.g. on a 5000 mah battery after about 6 starts/flights, the JC will not start.) So, ... I use a 5700 mah LiPO for the JC circuits. It lasts about 6, maybe 7 flights/starts.

LiFePo4 batteries currently come with the jet cats with V10 ECUs. The LiFePo4 battery chemistry is designed to deliver higher current than a similar LiPo. Also, the LiFePo4s are three cell. so the voltage is stepped up a bit too. But I am not sure that you can use LiFEPo4 with the V6 ECU that you have.
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Old 05-14-2018, 01:32 PM
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Dave Wilshere
 
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2s Li-Po only on v6 ECU.
The C rating is key, a decent 3600 pack should give 6 flights on Kero start, double that on gas.
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Old 05-14-2018, 04:18 PM
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kork
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Thanks Guys, Would this one do?
15 c rating and I opted to the 5000mah?
https://www.pulsebattery.com/pulse-5...o-battery.html

or go with the 3500mah with 15c rating

https://www.pulsebattery.com/pulse-3...o-battery.html
what do you think?
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Old 05-14-2018, 09:10 PM
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Dave Wilshere
 
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15c is poor, 35-50c is all I use
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Old 05-15-2018, 03:23 AM
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kork
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Thanks Dave,
I read more into them and they say constant 6 c is all they will put out. I will move on from that brand and buy a large, say 3500to 5000 mah and get a minimum 30c discharge.
Thanks again.
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