Recent content by MVodhanel

I screwed up on the Multi-Star tests. I didn't see any HV batteries, and I swear I thought I looked hard for them. So, I did my tests on standard 4.2 volt batteries. I split the 5200 and 6600, 4s's into 2s's and tried various different combinations of 2s's in series, or pair of parallel 2s's...

Liberty makes a good one - available on Amazon. I'm experimenting with those batteries myself. Absolutely lubricate those motors with the big loads. I'm between a rock and a hard place on the other important thing. The battery manager isn't designed to handle all those amps. hence my load...

I see. I understand the form factor you have in mind now. Really interesting drone, btw. Yeah, the more I think about it a shaved down ultra-light P3.... If the camera could be separated from the motorized gimbal.... The design advantage (ability to compress the shape, etc...) and the...

I get the feeling you want speed, horizontal speed. If I am right, you are on the right track with a light P3. That is why I want to build another and stick more closely to the ultra-light theme. Lite Foot got heavier as I added features, but I was flying a true ultra-light at the beginning...

LB safety issue (load bypass) I have noticed that when using a circuit to assist the P3 battery manager carry the amperage load from the primary battery, the percentage based flight time system is defeated. Only the voltage based system appears to be in place. This means anything that relies...

Yeah, I had the same idea, originally, but all the radios are in that VPS unit. I didn't see any clean way to extract just the sonar part. OTOH, it does work really well, I would hate not to have it. What is optional are the LEDs, for sure. I flew tests for quite a while without them...

40 minutes sounds amazing to me. I don't know about losing the legs - I think the antennas need to be vertical. Assuming this is true would need four features with that kind of separation anyway to maintain proper signal. Can certainly minimize them...

I'm currently working on the extended mode, see attached pic. The standard, extended mode I had in mind is depicted. I came up with a way to get around the single battey problem, so, I will be testing a couple of HV 4s singles with capacities substantially higher than the stock battery and see...

Sounds good to me. In fact I realized I haven't updated my battery inventories in a while so I ordered a couple of MS 5200 and the next step up 6xxx, a couple of those as candidates to split and try as extended flight single mode. My load bypass circuit now makes this possible. Before I...

Yep! Amazon will deliver tools and materials directly to your door. Please do not indicate to family where you learned any of this...

That is my Lite Foot project at : Lite Foot In case it may seem rude of me posting such a link here, really, it is not. This thread inspired that project. I would have posted it here, but it would have hurt too much making it fit the dual battery mod theme as I have done in the past. You are...

Nix, the compass is in the landing gear, right - rear. It is really finicky about anything metallic like wires, etc... You probably have something too close to it. Just relocate it, and you should be good.

I ran a test with a dual battery configuration on my custom copter and was reminded that the dual setup works pretty well. I have attached pictures of battery screens showing results. The percentage system allows a pretty thorough discharge of both batteries. Then I ran the same test with the...

I get a little frustrated working with this DJI battery manager. I find myself wanting to find the firmware designer and do really bad things to him. I don’t find myself cussing so much any more. It took a while, but my dignity is coming back now that I have left my catatonic, fetal position...

I stumbled onto a gem today working on extended flight on my Lite Foot project. I think it is relevant here, and I also think it might prove to be the serious no-nonsense method to facilitate extended flight on the P3. If you run power leads direct from battery to ESC board input (you need a...