Review on POWOBEST USB 18650 Battery Charger Compatibility: Li-ion, IMR, INR, 14500-18650, RCR123A, 18490, 16340, 17670 - POWO18B Charger by Angela Fields

I had some bad luck with this product at first but the seller was so great I have to give this charger 5 stars! The first two devices I received had a bug that after two charges, only 2 of the 4 charging bays can be used at the same time. My first exchange was so easy and they even sent me a new unit which arrived the same day the old one was sent back for a refund. This was especially thoughtful as I gave my old charger to a friend and I would be without it if I didn't get a new one. When the second block did the same, I contacted the seller directly. They were incredibly helpful, I had a lightning fast connection and had a new device that has been working great ever since. I understand that there can be issues in production so this whole issue wasn't a big deal for me, especially with the seller who was so supportive. If I needed a different charger I would definitely use this seller again.