Short flight times 2s tinywhoop | Betaflight | Page 1

terse halo Jun 10, 2024, 1:32 PM

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I turned off airmode, made it 48khz and running stock PID and filters that i got with fc in acro mode. I need help tunning the quad because i get 2minutes of flight time. Weight is 37g dry, and 54g total using 2x1s tattu 300mah.
AIO
https://betafpv.com/products/f4-1s-12a-flight-controller'
Motors
GTS V3 1002 - 14000KV
https://www.drone-fpv-racer.com/en/gts-v3-1002-14000kv-brushless-motor-by-rcinpower-9807.html
Around 3.5v walksnail 1s vtx blacks out, and i lose video. This is an issue too.
I want the whoop to be able to do freestyle but it strugles with regular flight.

Drone FPV Racer

GTS V3 1002 - 14000KV Brushless Motor By Rcinpower - Drone-FPV-Race...

terse halo Jun 10, 2024, 1:54 PM

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Props out

timber ibex Jun 10, 2024, 4:32 PM

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"using 2x1s tattu 300mah" Do you have these wired in series or parallel?

terse halo Jun 10, 2024, 4:34 PM

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https://betafpv.com/products/2s-whoop-cable-pigtail-bt-2-0?_pos=1&_sid=ba7886787&_ss=r

BETAFPV Hobby

2S Whoop Cable Pigtail (BT2.0)

This BT2.0 double connectors cable is for 2S whoop drone like Beta65X HD and Beta65X FPV. With the BT2.0 connector, it can solve the problem of voltage sag, the discharge of the 1S lipo battery becomes more efficient. Pilots can enjoy more flight time without disturbance of low voltage warning. Bullet Point Specialize

timber ibex Jun 10, 2024, 4:37 PM

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Yup, that's series. What's the prop size?

terse halo Jun 10, 2024, 4:37 PM

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40mm

timber ibex Jun 10, 2024, 4:40 PM

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I think your batteries are too small. For reference I fly a 40mm w/ a HV 2s 750mah. I tried the 550mah and had too much sag and 3min flights. You probably get a lot of sag too.

terse halo Jun 10, 2024, 4:41 PM

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yeah i do, 4v after getting in the air

timber ibex Jun 10, 2024, 4:42 PM

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when you punch it w/ a full batt do you get the battery low warning?

terse halo Jun 10, 2024, 4:42 PM

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havent tried, im only flying it at home now, dont know about reliability

timber ibex Jun 10, 2024, 4:43 PM

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flying inside?

terse halo Jun 10, 2024, 4:44 PM

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yes

timber ibex Jun 10, 2024, 4:44 PM

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Pretty sure it's a small battery issue you are having.

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still, that's pretty light, not sure

terse halo Jun 10, 2024, 4:45 PM

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how much mah would you recommend, and what connector?

timber ibex Jun 10, 2024, 4:45 PM

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what quad is this?

terse halo Jun 10, 2024, 4:45 PM

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i made it today

timber ibex Jun 10, 2024, 4:45 PM

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frame?

terse halo Jun 10, 2024, 4:46 PM

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Beta75 Pro 2

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i have happymodel v3 also

timber ibex Jun 10, 2024, 4:49 PM

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https://betafpv.com/products/beta75-pro-2-brushless-whoop-quadcopter
You are using the recommended battery

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but also getting the advertised flight time too

terse halo Jun 10, 2024, 4:50 PM

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i guess you are right, but mine weights 9 gramms more

timber ibex Jun 10, 2024, 4:52 PM

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Flywoo HV 550mah 2s HV packs. 24g and would allow you to reduce the weight some by removing the series harness.

terse halo Jun 10, 2024, 4:53 PM

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oh, how much?

timber ibex Jun 10, 2024, 4:54 PM

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PM me, I don't want to get in trouble for selling stuff on here.

terse halo Jun 10, 2024, 4:55 PM

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hmm i do think that i need more mahs thought

#Short flight times 2s tinywhoop