charge hr

My original charge HR got 4-5 days on a charge. After a couple years I was getting at most a day. I bought one of the TAE batteries from Amazon and it had less than 6 hours right out of the box. Has anyone found a reliable replacement?

Does anyone else have a fitbit that can connect to their galaxy S6? The phone cannot find my girlfriend's fitbit charge HR and therefore won't connect to it. The app just sits there trying to connect for a minute to no avail.