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Customer reviews

Rating 4.6 out of 5 stars with 522 reviews

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96%
would recommend
to a friend

Customers are saying

Customers highly value the AMPMAX Portable Power Bank's long battery life, convenient portability, and compact size. Many appreciate its ability to recharge multiple devices and the added convenience of a built-in flashlight. Positive feedback also highlights its performance and affordability. The power bank's compatibility with various devices is another frequently praised feature.

This summary was generated by AI based on customer reviews.

The vast majority of our reviews come from verified purchases. Reviews from customers may include My Best Buy members, employees, and Tech Insider Network members (as tagged). Select reviewers may receive discounted products, promotional considerations or entries into drawings for honest, helpful reviews.
Page 27 Showing 521-522 of 522 reviews
  • Rated 1 out of 5 stars

    Greatly Underperforms compared to others. A dog.

    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    I own a few other external batteries and have used them for a few years. I chose this battery because it claimed to have the same capacity (6000 mah) and a higher output that another one by New Trent I have that is about 30 percent larger. The Amp Max only charged my Galaxy 3 percent in over an hour. I would typically expect to see at least a 20 to 30 percent increase in the charge over the same period. Maybe this is why Amazon says this battery is discontinued. I plan to stay away from this brand. I can't imagine how this battery got good reviews, unless people have never used a good external battery before.

    No, I would not recommend this to a friend
  • Rated 2 out of 5 stars

    The battery backup is poor.

    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    I charge this for 3 hours and it charges my mobile for one full charge. Disappointed.

    No, I would not recommend this to a friend