9

It sounds like you're asking 2 questions: Is an imbalance in motor performance indicative of a failing battery? How would you test for a failing battery? The answer to the first question is "maybe". We had an issue on one of the AUVs I used to work on, where sometimes at the end of the day it would lose all heading control. By chance, we discovered that ...


5

It looks like your motors can draw up to 2.5A each; there's no way a 9-volt alkaline can sustain that current (plus the other on-board electronics) for any length of time. You'll need to pick a more appropriate battery for this robot. Have a look at the discharge curves for several batteries, and pick one that fits the current draw and desired operating ...


2

"behavior indicative of a LiPo going bad" - in my experience this is usually a puffy battery, or a fire. My understanding of it is when a LiPo goes bad, the individual cells within it are not charging and/or discharging evenly, and that indirectly leads to the previously mentioned symptoms. Can you check the voltage balance after a bad flight? Are they ...


2

There's a possibility that the battery is going bad under those conditions. Assuming you have some kind of battery supervisor, just adding an interrupt indicating that the battery is below a certain level would be very informative. That way, if you have a freshly charged battery and the interrupt is triggered sooner than expected, then you know that the ...


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