Slow to charge

I bought these for my husband and I for our trip to Italy. We took a great number of photos on our phones which drained our batteries. I bought these specifically to recharge the phones while traveling in unfamiliar cities to be able to access directions, find restaurants, hotels, etc. These took a very long time to charge a very small amount, leaving us unable to access the internet due to insufficient battery. Although quite portable, I did not find these to be as helpful as I had hoped.

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