- Jun 14, 2020
So I'm just curious, I'm upgrading my alternator to the 3g with all new wiring and what not. Should I also upgrade my negative and positive cables on the battery? And what is a good battery to put in? Or will it even be necessary to change the battery? It still starts fine, just dies fast as if you run anything without the car started. Also, I have subs and electric fans. But no a/c.