Instruct: Classify Amazon reviews into positive or negative sentiment
Query: DO NOT BUY THIS JUNK

JUNK, JUNK, JUNK. As another reported, AA batteries are too big and do NOT FIT into many devices correctly. 3rd or 4th time I used the charger it significantly overheated and I believe would have caused a fire. I threw the whole mess in the garbage where it belongs. DO NOT BUY THIS JUNK OR ASSOCIATED CHARGIN DEVICES!!!!!!!!!!!!!!!!!!!