What is the lifetime of a lead acid battery?

What is the lifetime of a lead acid battery?

Sealed lead acid batteries can have a design life of anywhere from 3 – 5 years all the way up to 12+ years depending on the manufacturing process of the battery. There are many factors that affect the service life of the battery including temperature, for more information please view our technical manual.

What are the three phases of the lifetime of lead acid battery?

A lead acid battery goes through three life phases: formatting, peak and decline (Figure 1). In the formatting phase, the plates are in a sponge-like condition surrounded by liquid electrolyte.

Which is the main indication of battery pack failure?

Contamination of the active chemicals gives rise to unwanted chemical effects which could result in various forms of cell failure such as overheating, pressure build up, reduced capacity, increased impedance and self discharge and short circuits.

How do I know if my sealed lead-acid battery is bad?

There are some sure ways you can tell if your battery is bad by simply taking a good look. There are a few things to inspect, such as: a broken terminal, bulge or bump in the case, crack or rupture of the case, excessive leaking, and discoloration. Broken or loose terminals are dangerous, and can cause a short circuit.

What is the cycle life of lead acid batteries?

The following graph shows the evolution of battery function as a number of cycles and depth of discharge for a shallow-cycle lead acid battery. A deep-cycle lead acid battery should be able to maintain a cycle life of more than 1,000 even at DOD over 50%.

How often should a sealed lead acid battery be charged?

Sealed Lead Acid batteries should be charged at least every 6 – 9 months. A sealed lead acid battery generally discharges 3% every month. If a SLA battery is allowed to discharge to a certain point, you may end up with sulfation and render your battery useless, never getting the intended life span out of the battery.

Which is the most common natural failure mode for leadacid batteries?

-Expansion and corrosion of the positive grid structure due to oxidation of the grid. and plate materials. This degradation mechanism is unavoidable and is the most common natural failure mode for leadacid batteries maintained on a float – charge.

How many volts does a lead acid battery have?

The top charge should be for 20 – 24 hours at a constant voltage of 2.4 volts per cell. 6 volt sealed lead acid batteries have 3 cells which amounts to 7.2 volts where as 12 volt sealed lead acid batteries have 6 cells which amounts to 14.4 volts.