Can I just have a new battery fitted for my Samsung Galaxy S6?

[Trumpelina]

I don't want to upgrade, I like my phone but the battery isn't what it once was. Can you just get a new battery put in? & if so, where's the best place to do it & what's a good price? Are they reliable 2nd batteries?

If you get a genuine Samsung one it shouldn’t be a issue. Be very careful with what you order. Might be worth contacting Samsung.