Advantages of Lead-Acid Batteries

You may not know that there are ancient forms of battery technology. Lead Acid batteries have been around longer than most people, including your great-grandparents, and they continue to help people and companies with things like cold weather starts) along with restoring Hospitals and Data Centers after a power outtage. Recently we have seen Lithium-Ion batteries getting most of the attention but Lead Acid Batteries are still here! Over the last 160+ years we have done an amazing job manufacturing these batteries. Why are Lead-Acid batteries so essential to the battery industry? The answer is rather straightforward; they are inexpensive and dependable.

For the most part, if you need a lower-priced alternative to store-bought batteries, we suggest Lead Acid batteries. When you buy lead-acid batteries, you will get more than one kWh of power for each $1 you spend versus buying lithium ion or nickel metal hydride batteries as the primary battery technology. We've been perfecting our production methods for over 100 years and will continue this process for the foreseeable future. Two of the main components for lead-acid battery manufacturing still remain lead and sulfuric acid. Lead-acid batteries are ideal because they are cost-effective for applications that require significant amounts of energy storage that don't mind having a larger footprint (weight/space), such as for use as backup power for telecom towers and off-grid solar systems.

Then there's the proven reliability and safety. The chemistry is inherently stable and forgiving.Lead-acid batteries? They just work. You don't need those fancy battery management systems that lithium-ion packs need to stop from going haywire and catching fire. Batteries with a Battery Management System (BMS) tend to have a longer lifespan. A great advantage is that you don't have to worry about your lead-acid battery exploding if you accidentally overcharge or fully discharge it. This is very useful when you're in remote locations. Mechanics and hobbyists like this reliability. You can see them in almost every regular car, reliably giving that big jolt of power needed to start the engine, whether it's freezing cold or really hot.

Lead-acid batteries have the ability to generate very high "cranking power," which is measured in terms of both cranking amps (CA) and cold cranking amps (CCA); this is very important for starting internal combustion engines. The sponge lead negative plates have a huge surface area, allowing for rapid discharge. While lithium-ion can do this too, a standard lead-acid starter battery does it for a fraction of the cost and with less sensitivity to temperature swings during the surge.

One big plus that people often miss is how easy these batteries are to recycle. Lead-acid batteries are recycled like crazy - we're talking over 99% in many places, which makes them one of the most recycled things we use.Simply put, a lead-acid battery's plastic housing is recycled. Most people don't throw the battery away; they drain the acid from the lead-adc batteries and send them to the smelter, where the metal is melted down, cleared, and reused. This process has many environmental benefits, including reducing the need for mining and decreasing the amount of an environmentally harmful chemical in landfills. The impact on lithium-ion batteries is far less positive, although they are still commonly used for electric vehicles. Recycling them is still pretty new and costs a lot more.

Furthermore, their performance across a wide temperature range is respectable. Lithium-ion batteries have a lower capacity in the cold (as do all batteries), but the combination of their high capacity to deliver cranking power at extremely low temperatures and their relatively better thermal stability than many lithium-ion batteries makes lead-acid batteries the battery of choice for automotive starting applications.

Finally, the simplicity of maintenance and float charging makes them ideal for standby power. In applications like uninterruptible power supplies (UPS) or emergency lighting, they sit for months, even years, on a constant "float" charge, ready to spring into action when the grid fails. The technology for maintaining them in this state is simple, cheap, and well-understood. Flooded variants even allow for maintenance like checking electrolyte levels and adding water, giving users direct control over battery health.

Of course, they have drawbacks-they're heavy, have a lower energy density, and suffer from shorter cycle lives compared to lithium-ion. But for a vast array of uses, their advantages shine. Lead-acid batteries are not glamorous. But they simply work. Engineers and purchasing agents continue to choose lead-acid batteries because they are considered low-cost, dependable, safe, and their ability to provide immense power, are an engineer's choice. They have been used for many years, and for a good reason.
Next time you crank up the ignition in your vehicle, remember the simple lead-acid battery. You can find it at an affordable price, it is recyclable and can last a long time. It is a perfect example of how often the best and simplest solutions are the most difficult to beat.