Definition: In this task, you're given reviews from Amazon's products. Your task is to generate the Summary of the review.
Input: tried to charge unit up before using it. wouldn't charge through AC. Tried charging through solar cells. All of a sudden the flashlight turned on and could not be turned off until the unit ran out of power. Didn't bother to request a refund or exchange. To much of a hassle.

tried to charge unit up before using it. wouldn't ...