Does a Siri remote replace a Second generation remote?

The Siri Remote is compatible with Apple TV (4th generation or later).

The Apple Remote (aluminum) is compatible with all models Apple TV.

My second generation remote (aluminum) will not go pass network to log in

If your Apple TV remote isn’t working - Apple Support (pair/link it again)

and how is the battery level? How to replace the battery in your Apple Remote - Apple Support