Optima Red Top - warranty?

[parkcrf]

I am thinking of getting the Optima red top battery, but am curious if it will affect the warranty? It's a used 02 4.4i and has some factory warranty left, and I also purchased an aftermarket warranty as well.

It seems like the stock battery struggle sometimes to turn over the engine.

Will there be any problems?

Thanks in advance

[X5ive]

I believe the battery is covered under your warranty.
Check with your local dealer.