we need a new battery/charger for a macbook pro laptop from year 2012 or 2013. where can I buy one?

Chucmon wrote:

I need a new battery/charger for a macbook pro laptop from year 2012 or 2013. where can I buy one?

¿ battery/charger — buy one what?

Battery

or

Charger

or

both......

Find the right power adapter and cable for your Mac notebook ...

https://support.apple.com/en-us/HT201700

Battery service—

Learn how to get your Mac desktop or Mac notebook fixed and how much it will cost.

https://support.apple.com/mac/repair/service