We are considering an external battery for our iPhones this summer. Charging is a challenge for us since we are on an island with no power.

Options are --

1) a solar charger without a battery attached.

2) a back up external battery only.

3) both

I am reading the reviews for EasyAcc and Anker...both are high mamp output now. But the negative reviews of dead on arrival, and total failure, or only getting one or a few charges before failure of the battery pack are very discouraging...there are so many who report this, and it seems odd to me that both companies have so many failures.

Now we use a car battery charger, with a 12V DC plug with an adapter but charging this monster is at least 12 hrs for about 4 to 5 charges total to the phone. And it is getting old, and not as efficient as before.

So now after reviewing the options, our son sent us... it appears to be difficult to choose. I am tending toward a solar unit..which would need some way to keep the phone cool from the sun so it won't fry (as they tend to do in heat).

Does anyone here have any suggestions? We should order anything we decide on within a week, so it can be tested out before we leave in July. Thanks in advance...