Where is the best place to find affordable battery cells replacement? Plus labour? And how much should you expect to pay nowadays? I'm living in california
This guy sell the best modules: http://www.2ndlifebattery.com/about-us/ As for who does the labor the best, it's a DIY thing you can learn and if you go with an existing rebuilder the cheaper they are the less reliable they are. If you don't want to replace the bad module yourself you're going to either get dissapointed by someone who thinks they know what they're doing and doesn't charge much or you're going to get a couple few years from a more expensive rebuilder before you're dissapointed. OR you can buy brand new OEM or Sodium and problem is solved for a decade or longer.