Avanti V2 Maiden with Li-ion Battery

This is the maiden flight of an Avanti V2 with a custom built 6s2p 9000mah Li-ion battery pack. The pack yields eight minute flights. A small part of this video was lost toward the end when the camera shut off.

[@deadstickduck2025]

I know it's not exciting flying for some but it does show how smoothly this new V2 behaves!

[@FlyShamu]

Suweet! 👍 Thanks for sharing.

[@ChrisHuxtable-mw8jt]

Is there room for 2 x 6 cell packs and how does the c of g work out any weight needed 🤔

[@ChrisHuxtable-mw8jt]

Which Li-ion cells are you using on the Avanti are they 4500 I'm about to maiden a ME 262 with molicell 2170 4500ma

[@deadstickduck2025]

That's the one. People flying 80/90mm EDF or prop planes using 6s5000 should be using 6s2p9000 P45B @900g and provide 5:30 full throttle on V2 avg 80A

[@deadstickduck2025]

If it's single 6s4500 you can expect burst up to 75A for several seconds and a continuous of 40~50A depending on your cooling. The stock Avanti/Vipers have great cooling thru the battery compartment.

[@The43rdHammer]

Hi - could I ask what the weight comparison to a Lipo is and the power differential on the Li-Ion? I must confess to being a sceptic with an open mind to persuasion on whether they are actually better than Lipos in all circumstances. Edit: I just read the other comments so can see the weight. It’d still be interesting to see what power the Li-Ion can hold with the throttle fully open for say 30 seconds versus a Lipo

[@deadstickduck2025]

Well in the V2 a 6s9000 P45B 900g pack is vertical for 5:30 minutes.......

[@CrstnJdiKnight]

Interesting battery pack used. How much of a difference from a same equivalent lipo?

[@deadstickduck2025]

SMC 6s5300hv 731g, 6s2p9000li 877g.... so, 150g more for 7500mah vs 3750mah. Double the capacity in the tank.

[@adamtrzaskowski3901]

@@deadstickduck2025 Not a correct comparison - you need to take the higher voltage of the SMCs into account. SMC HV operate between 4.35V and 3.8, whereas the Molicels between 3.9V (the voltage drops from 4.2 to 3.9 almost instantly) - 3.0V. The total power per weight is stil higher with Molicels, but nowhere near double.

[@deadstickduck2025]

Run 2000w for 2:36min on a 6s5000lipo, or 2000w for 4:27min on 6s9000li. True, just @71% more, not double.

[@MichaelMaujean]

The biggest difference is number of cycles. Molicel says 500 and I would expect a lot more if you look after them. Good luck trying to get 100 from a lipo without it looking like a water bottle. With the cost of living these days, it's all about return on investment.