Definition: In this task, you're given reviews from Amazon's products. Your task is to generate the Summary of the review.
Input: Please check this product out. This is the second unit I've received and both have same problem, the green 'charged' light comes on when plugged in, without a battery attached. I'm going to try to charge the battery pack with this 2nd unit to see if it works, but will have no idea by looking at the charger when and if the battery is charged.

Please check this product out. This is the second ...