If you really want to build a high quality but inexpensive battery bank one of the best options is to: 1. Get old or “dead” batteries from golf courses or golf cart shops for free …or dirt cheap (just call them and ask if you can have their old batteries probably lying around and cluttering their shop) 2. Then recondition those batteries to like-new condition with the EZ Battery Reconditioning program 3. Use those reconditioned batteries in your battery bank 2) Industrial or Forklift Batteries A battery bank that uses one or more industrial batteries follows the opposite philosophy of a golf cart battery bank. Instead of relying on multiple strings of smaller batteries, you use a few or even one battery to store all of your energy. Because these batteries aren’t usually manufactured to standard dimensions, you will have to have one made that is just right for your needs. Or you can try to find an old industrial or forklift battery that’s the correct size for your system and use that. Like golf cart batteries, there are sometimes ways to get free or cheap forklift batteries. View our Free Presentation to learn how to bring old batteries back to life again