Lead Acid-Batteries vs. Other Battery Technologies Many of the batteries that are used in renewable energy systems were originally designed for other purposes. The most prominent example of this is the lead acid battery which has dominated the industry for a long time. Deep cycle lead-acid batteries have proven to be one of the best (and most affordable) battery types for alternative energy system battery banks for these reasons: They’re able to withstand frequent discharging They’re cheaper than other kinds of batteries They have more rugged durability in a battery bank They deliver more consistent performance than other batteries The fact that they are widely produced also means that they are relatively easy to replace if a battery in your battery bank needs replacing. View our Free Presentation to learn how to bring old batteries back to life again