These flooded lead-acid batteries were originally designed for supermarket floor scrubbers. The good thing with these batteries is that they last a bit longer than golf cart batteries – about six to eight years. However, they are often twice as heavy and the 6-volt models can be twice as expensive. Conclusion Different homes will have different power requirement and will need battery banks that are sized accordingly. If you build a battery bank using any of the three batteries mentioned above, you should be able to create a battery bank that is just right for your needs. There are some exciting new developments in the battery world for alternative energy. These new products should be entering the market over the next couple years, like the lithium ion Tesla Powerwall. But at this time, our three favorite batteries for residential off-grid, alternative energy systems are golf cart batteries, L16 batteries, and industrial batteries. And if you’re interested in saving money on your battery bank, you can use the EZ Battery Reconditioning program to learn how to: 1.Get old or “dead” golf cart batteries, L16 batteries, or industrial batteries for free or dirt cheap 2. Recondition them back to 100% of their working condition 3.Use those “like-new” batteries instead of buying new overpriced batteries to save a lot of money! View our Free Presentation to learn how to bring old batteries back to life again