I ordered the updated 4,380mAh SHENMZ battery from Amazon and now it often lasts 2 days before needing to charge it. Granted I'm not a huge phone talker or game player, but the original battery wouldn't even make it through a day. I thought there was something wrong with the phone (purchased new just last November), or it was an old battery, but the battery was dated August 2020. I was ready to just get another phone, so I'm very happy I tried this battery first.