Bigroger
70cc twin V2
Give ol mate at DLengines Aus a call he sells the ibec's and swears by them. I just ordered a DX18QQ with the power box rx and I'll be using an ibec on my next gassa
Mate, thats the IBEC I plan to go with, its the Tech Aero Ultra which is the one IBEC that never seems to get complaints.
Now Park- the reason for Lipo or LiFe is the volts, 7.4V which the HV servos are designed for. faster and stronger.
The interesting statement about lipos catching fire in a crash is pretty funny really.
I have only flown electric planes in my own fleet and so far thousands of flights across 16 different planes in my hanger. Many, many, many, many crashes. many fatal to the airframe and motor and never one single puffed, exploding, catch on fire lipo ever.
My lipos are usually very, hot after hard runs in some cases pulling over 100A peak out of 4s4000 packs and all is good.
I know in the old days of lipo's there were cases of them catching fire and I still hear these stories all the time at the club but to be honest I've not heard of it personally in my case.
The issue with lipos I've heard is 1. Voltage sag and 2. robustness under the vibration of gas motors.
The tabs that are welded onto the lipo cells to allow series connection is pretty fragile. there have been cases where these things break from vibration in flight and/or short out.
having said that lipos have come a very, very long way in the last several years and most servo makers are targeting lipo setups in gas planes these days, hence I ask the question.
If I ran lipos, I'd be taking them out of the plane to charge and store them away from the plane when not in use. Charge them up to go fly and at the end of the day, remove them as I am packing up the airframe.
If they are mounted in a location easy to get to this is no harder then any electric setup we all currently fly with.
And at $15 for a good 2s2600 size pack versus $55 for Fromeco 2s2600 packs its a world of difference if the lipos survive the vibrations of the motor?