Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Ordered 2 ten packs, tried 3 different chargers, only 4 batteries worked

I had heard some good things about Lenmar nimh batteries about two years ago - but had bought another brand. This time around, with the good price on Amazon, I gave these Lenmar batteries a try. I ordered two ten-packs. Only 4 out of 20 batteries would accept a charge. I tried an Energizer charger, a LaCrosse BC-900 charger, and a RipVan100 Lightning Pack 4000N charger. None of these would charge 16 of the batteries - even in the 'recovery' modes. In the process of returning the batteries to Amazon.