Taking forever to charge plugged in. The light does not come on either unit (I purchased two black chargers)

Didn’t love this

It wasn’t strong enough

Bought a pack of these as a gift for my family prior to our cruise. Figured it would work perfect in sun by the pool all day. Well, it totally sucked. I got maybe 1% charge in direct sun over several hours. The flashlight worked great though but not needed on a sunny deck. After we were able to check in our room I was able to use an outlet to charge them for the next day of excursion. One of the kids forgot to charge their phones so we gave the fully charged up power bank another try. It charged the iphone a good bit but the powerback was dead about 4-5 hours later.