When the battery acid mixes with the lead, it creates a gas known as hydrogen sulfide which has the smell of rotten eggs. This gas is highly flammable and can be explosive if it's not vented properly.
Battery acid commonly smells like rotten eggs but may smell differently depending on type (we have a chart below). Yup, you heard that right – pretty gross, huh? This stench is mainly due to hydrogen sulfide gas, produced when a battery dies or leaks.
Another familiar smell associated with battery acid is vinegar. You might be wondering how in the world a dying battery could smell like vinegar, right? Well, it's because most battery acid contains sulfuric acid, which smells similar to vinegar.
What does battery electrolyte smell like?
The strong smell of battery electrolyte is often compared to the smell of a rotten egg. When you first open a bottle of new battery acid, you will be able to smell a faint acetic acid odor. This is normal and not cause for alarm. The scent will become more potent as the liquid evaporates.
Why does my car battery smell like acid?
Electrical System Problems: A strong smell of battery acid near electrical systems, such as in a vehicle or electronic device, could indicate electrical problems that are causing the battery to overwork or malfunction. Inadequate Ventilation: Poorly ventilated areas where batteries are stored or used may concentrate the smell of battery acid.
How do you stop a lead acid battery from smelling?
Turn off the charger, vent the facility and stay outside until the odor disappears. Other gases that can develop during charging and the operations of lead acid batteries are arsine (arsenic hydride, AsH 3) and (antimony hydride, SbH 3).
What happens if you swallow a lead acid battery?
(See BU-705: How to Recycle Batteries) The sulfuric acid in a lead acid battery is highly corrosive and is more harmful than acids used in most other battery systems. Contact with eye can cause permanent blindness; swallowing damages internal organs that can lead to death.