Instruct: Classify the given Amazon review into positive or negative sentiment.
Query: This is NOT an OEM

This battery must be a used battery and NOT an OEM. After charging the battery up, it only lasted 2 days. That is if you didn't use the phone, but if you used the phone it lasted just over a day.After a week of constantly recharging it, it dropped to last then 12 hours of power, but again if I use the phone it died. I didn't get even 5 minutes of usage.Bottom line; don't buy any batteries from them again. It's not weard the price. Your better off paying extra money for battery from other company then this one.