How to choose a quality iPhone4 external battery charger case? Prices vary $10-$75 & all are Chinese-made and no-brand - can't see reviews.
I need to buy a good quality iPhone 4 external battery charger case. Looked all over eBay -- they're all Chinese-made but the prices vary hugely. I can see reputable sellers, but can't find reviews for product since they're no-brand. Appreciate any advice, thanks!