The Pros and Cons of Lead-Acid Solar Batteries: What You Need …
Flooded lead-acid batteries: These need you to check water levels and have open vents. Be careful; they can spill if tipped over. Sealed lead-acid batteries: You don''t have to add water to these ones, and they don''t spill easily. AGM (Absorbent Glass Mat) batteries: They charge faster and last longer without power than other sealed types.