Worked until it didn't.

This item worked very well right up until it didn't. The unit after three weeks of minimal use (indoor only) started to have issues. The unit would suddenly be very sporadic in its' movement and then shut down without warning. Charging the device did not seem to help. The low battery warning did not activate, which leaves us to believe there was something wrong with it. It should also be noted that the charger got extremely hot when charging.

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