RCU Forums - View Single Post - Anyone having inexplicable Apprentice 15S Crashes?
Old 07-30-2014, 05:14 PM
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kevink47
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I have a 15s and a month ago it had been flying fine and all at once the wings rocked and started to porpoise and any input to recover failed.Found the plane 2 blocks away in a bush.(no damage)I discovered that the battery had a shorted cell and was puffed up.Apparently when the voltage was unbalanced the receiver went crazy due to a low voltage condition.You may want to check your batteries.Since replacing my battery there have been no issue.Hope this helps