Solo spin out

[jabbajavva]

Hello, I have a solo installed with open solo 4. Battery level was good, and i had a perfectly fine connection to the drone. I went forward very fast, and then tried to change direction. Once i changed direction, the drone began to shake midair and wiggle. Not very violently, but this caused the drone to start moving slightly downwards as well as 10 meters to the right. I tried to get the drone to lift upwards, but it just kept going on its own path, with no errors coming from solex or the controller. This resulted in the drone narrowly missing trees and power lines, and just hitting the dirt and only losing 1 prop. How could this have happened? I have done similar maneuvers before, with no negative effect. I have done at least 2 flights since installing opensolo4 about 3 months ago. All batteries including controller and gopro were charged. I also had 10 gps connected, and my solo was holding its position and altitude well earlier in the flight

 

[jonbrotherton]

Hello, I have a solo installed with open solo 4. Battery level was good, and i had a perfectly fine connection to the drone. I went forward very fast, and then tried to change direction. Once i changed direction, the drone began to shake midair and wiggle. Not very violently, but this caused the drone to start moving slightly downwards as well as 10 meters to the right. I tried to get the drone to lift upwards, but it just kept going on its own path, with no errors coming from solex or the controller. This resulted in the drone narrowly missing trees and power lines, and just hitting the dirt and only losing 1 prop. How could this have happened? I have done similar maneuvers before, with no negative effect. I have done at least 2 flights since installing opensolo4 about 3 months ago. All batteries including controller and gopro were charged. I also had 10 gps connected, and my solo was holding its position and altitude well earlier in the flight

5zI would highly suspect a brownout issue here. If you were using a stock battery you

Hello, I have a solo installed with open solo 4. Battery level was good, and i had a perfectly fine connection to the drone. I went forward very fast, and then tried to change direction. Once i changed direction, the drone began to shake midair and wiggle. Not very violently, but this caused the drone to start moving slightly downwards as well as 10 meters to the right. I tried to get the drone to lift upwards, but it just kept going on its own path, with no errors coming from solex or the controller. This resulted in the drone narrowly missing trees and power lines, and just hitting the dirt and only losing 1 prop. How could this have happened? I have done similar maneuvers before, with no negative effect. I have done at least 2 flights since installing opensolo4 about 3 months ago. All batteries including controller and gopro were charged. I also had 10 gps connected, and my solo was holding its position and altitude well earlier in the flight

He
were taking a chance. Flying aggressively you were taking a bigger chance. Replace the cells in your battery or get a BMSOne.

 

[jabbajavva]

5zI would highly suspect a brownout issue here. If you were using a stock battery you

He
were taking a chance. Flying aggressively you were taking a bigger chance. Replace the cells in your battery or get a BMSOne.

Yes, I think this must be the issue.
Currently I am waiting on a set of 2 4-cell 5200mah tattu lipos to come in, as I have already stripped 2 of the stock batteries down to the BMS. I should probably not fly it at all until I get those batteries recelled, and when I receive some new master airscrew props.

 

[jabbajavva]

5zI would highly suspect a brownout issue here. If you were using a stock battery you

He
were taking a chance. Flying aggressively you were taking a bigger chance. Replace the cells in your battery or get a BMSOne.

My tattu batteries finally came in, and the solo turns on and shows the proper voltage. However, I am unsure if I need to calibrate or register the battery somehow through solex. I also need to 3d print a cover that will keep the lipo in the battery tray and keep the wire4s away from propellers, as I do not want to use tape as a permanent solution.

 

[jonbrotherton]

My tattu batteries finally came in, and the solo turns on and shows the proper voltage. However, I am unsure if I need to calibrate or register the battery somehow through solex. I also need to 3d print a cover that will keep the lipo in the battery tray and keep the wire4s away from propellers, as I do not want to use tape as a permanent solution.

You do need to calibrate with the new battery setup on it. If you have a BMSOne there's nothing else to do other than compass calibration. The BMSOne comes with a strap that holds the battery on sufficiently and in a position where the wires should not be an issue.

 

[jabbajavva]

You do need to calibrate with the new battery setup on it. If you have a BMSOne there's nothing else to do other than compass calibration. The BMSOne comes with a strap that holds the battery on sufficiently and in a position where the wires should not be an issue.

I am not using the BMSone, as I have salvaged the bms board from my old solo battery, and then soldered my own xt60 and balance connectors for a four cell battery. How can I calibrate if I have recelled the battery as such? I am using the suggested tattu lipos, and I just want to make sure if I need to calibrate the battery if it is done this way. Also for the battery cover, I found one on thingiverse that I think was posted by you, and it looks like it does just what I need.

 

[jonbrotherton]

I am not using the BMSone, as I have salvaged the bms board from my old solo battery, and then soldered my own xt60 and balance connectors for a four cell battery. How can I calibrate if I have recelled the battery as such? I am using the suggested tattu lipos, and I just want to make sure if I need to calibrate the battery if it is done this way. Also for the battery cover, I found one on thingiverse that I think was posted by you, and it looks like it does just what I need.

Ahh yes.

You need to drain the battery through the main output connector on the BMS, slowly at about 1A, down to 13.5v. Then let the battery rest, turned off, for 45 minutes, at the end of 45 minutes charge the battery fully through the main output connector.

After that check the parameter BATT_CAPACITY. If it is less than 5200, repeat the process until it reads 5200. Then it is calibrated correctly.

Yes that battery cover should hold the Battery Mod in. It relies on the Battery Mod being the correct size to barely fit with the cover. If it is too loose it doesn't stay latched in on the sides. If it is too tight it may not push forward to latch in.