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Customer Ratings & Reviews

Your price for this item is $16.99
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The comparable value price is $34.99

Customer reviews

Rating 3.4 out of 5 stars with 28 reviews

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64%
would recommend
to a friend

Customers are saying

Customers highly value the compact size and lightweight design of the Juice Pack Reserve External Battery. Many appreciate its portability, noting it's easy to carry in a purse or on a keychain. However, some users express disappointment with the battery's capacity, reporting that it does not provide a full charge and requires frequent recharging. The battery's performance in providing extended power to the phone is a point of concern for some customers.

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 2 Showing 21-28 of 28 reviews
  • Pros mentioned:
    Size
    Cons mentioned:
    Battery life

    Rated 2 out of 5 stars

    Not so good.....stick to the full size Juice pack

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

    The Mophie Juice Pack Reserve is small & lightweight. That's about as good as it gets with this unit. It charges through a built in USB connection that forces you to create enough space around the port for the entire device. So unplug everything else to charge this because it won't fit with other cables nearby. After charging, I used it on my iPhone 4 and it charged the battery about half way. This was disappointing as well, considering that I bought it for extended travel hoping to get a full day out of my phone after charging it with this unit. I'll keep it for an emergency, but it's nowhere near as good as a full juice pack for mobile charging.

    No, I would not recommend this to a friend
  • Pros mentioned:
    Size, Weight

    Rated 5 out of 5 stars

    Awesome little charger

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

    Love this little zippo like charger, I have put in on my keychain and I can easily get 45/50% charge on my iPhone 4s for the price (34 bucks) you get a compact, lightweight battery that will save you when you need it. Also love how all the cables are all already there right for you.

    I would recommend this to a friend
  • Rated 4 out of 5 stars

    Good as a back-up

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

    This is a good product for the price. It helps to boost the battery on my iPhone, and I have used it while traveling. However, I haven't used it enough to vouch for it's longevity and power. I do have to admit that it caused quite a stir on my trip to the rainforest in San Juan. Many tour members were asking me about it and asking me questions. My niece pointed out that we were hiking into a rainforest and that it was kind of twisted for everyone to be focused on this little piece of technology. It definitely is a useful tool.

    I would recommend this to a friend
  • Rated 5 out of 5 stars

    Great gift for my wife

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

    Bought this for my wife as a gift and it's awesome. She keeps this little keychain in her purse and it's come in handy already a half dozen times. She loves it and says it's the best gift I've gotten her in years!

    I would recommend this to a friend
  • Cons mentioned:
    Battery life

    Rated 2 out of 5 stars

    Don't waste your money

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

    Duracell made a back up battery for about $15 charged my iPhone entire battery was looking to get a new one but not in stores best buy employee recommended this to say the least I'm very upset.

    No, I would not recommend this to a friend
  • Cons mentioned:
    Battery life

    Rated 2 out of 5 stars

    not up to specs

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

    purchased as a gift, and they say they don't get the extended time promised in the literature

    No, I would not recommend this to a friend
  • Cons mentioned:
    Battery life

    Rated 1 out of 5 stars

    Worse juice pack ever

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

    Not enough charge. Juice pack dies in less than 10 minutes. I do not recommend this product.

    No, I would not recommend this to a friend
  • Cons mentioned:
    Battery life

    Rated 1 out of 5 stars

    Doesn't work!

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

    Salesman said it would give a 50% charge for my IPhone, it gave about 5 %, then nothing!

    No, I would not recommend this to a friend