Review on Versatile SunJack USB Battery Charger for All Rechargeable Batteries by Janet Edwards

I received the first one with the batteries well charged, but after a few uses the micro USB power connector came loose from the board. Revain sent me a new device, but this time the connection to the same port was VERY unreliable, preventing power from being connected unless the cable was placed in the correct position. Even the slightest shock can break the connection. I've tried other cables with the same result, so it's clearly a micro USB hardware connector issue. Of the two devices I've seen, both have serious power connection issues. It might just be bad luck (getting 2 faulty units in a row) so if they send me another one I'll update this review so you know how it works. UPDATE 08/29/16. The seller/Revain never resolved my complaints that the replacement unit also had a bad micro USB port. So I never got what I paid for and that's when this item sold for $20. Apparently, once Revain replaces an item, it should consider its participation complete, even if that replaced item is also defective. Let the buyer be alert.