Aftermarket cellphone?
Good luck with that. The ‘originals’ IF you CAN get them are usually expensive.
The cheap replacements are generally not so good to lousy. I’ve tried lots for various phones and cameras. I set up a pretty good holder to test them fairly accurately and reliably. Often the battery I’m hoping to replace is better than the ‘new’ ones.
The anecdotal reviews are generally worthless. They have no hard data to support their statements.