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Please read this before buying
MISLEADING PRODUCT...........
So I purchased this item thinking this battery power bank was a 40kmah, yup its not. So I did get ahold of someone from romoss to explain why the label on this product states 40kmah power bank but its not. So the catch with this product is it has 4 batteries but they are rated at 3.7v at 10kmah. So since most electronic devices need a minimum of 5v. They capacity they are stating is misleading. This power bank battery is 3.7v rated but charges at 5v which downsizes the capacity. So this power bank capacity is 20kmah at 5v rated. So beware buying this product.
April 2021 · Cell Phones and Accessories · verified purchase