Definition: In this task, you're given reviews from Amazon's products. Your task is to generate the Summary of the review.
Input: I would give this light 5 stars for the price except it arrived with a 4.2 Volt Battery pack and an 8.4 V charger?? The charger does not shut off since it never achieves the 8.4 V charge state. I am also concerned about the battery going thermal runaway? I have not noticed it getting too warm but not happy with the mismatch.

I have not noticed it getting too warm but not happy with the mismatch