Cherro’s Backup Battery Duo Are Two of the Best on the Market
If you’re in the market for a backup battery for your phone, you’ll probably already know that there are easily thousands of them on the market, but you’ll be hard pressed to find some that actually will charge both your phone and your tablet more than 30%. I’ve been able to test quite a few of these battery cases, but the two battery cases I have in hand honestly hold their own in the market.