Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Phones good, 1 battery not so good

Purchased 2 handsets with what appeared to be 2 new batteries, enclosed with plastic. Installed both batteries, one phone charged, while the other did not, after 72 hrs. on the charge base. Interchanged batteries to learn one battery was bad. Spent $16 on a new battery, now both work fine. Paid nearly as much for a new battery as I did for the sets. But, both work just fine.