No, but they are dead simple aren't they? Charging them is easy. They can handle super high discharge rates no problem. Construction is simple, only lead, sulfu

No, but they are dead simple aren't they? Charging them is easy. They can handle super high discharge rates no problem. Construction is simple, only lead, sulfuric acid, and plastic. The materials are cheap, abundant, and recyclable. The battery chemistry is old and well understood. They aren't made from flammable materials, and if one does catch on fire, you can extinguish it using a normal fire extinguisher. They work well at low temperatures, and can be put in storage long term fully charged. About the only downside is they can make hydrogen if overcharged, and are heavy. Too bad they use lead, because it would be too good to be true otherwise. You have to treat lithium batteries like a spoiled child in comparison.