Lead Acid Batteries

Lead acid batteries can supply high surge currents despite having a very low energy-to-weight ratio and a low energy-to-volume ratio, meaning that they are able to meet large power requirements applications such as backup power supply storage. Their robustness and long lifetime make sealed lead acid batteries–a modification of the original flooded-style battery that’s designed to be maintenance-free, leak-proof and position insensitive–ideal for renewable energy systems: in fact, they are the most commonly used batteries across photovoltaic (PV) applications such as solar panels, where they capture surplus energy and store it for later use. They are available in a wide range of sizes and voltages in NZ to suit your requirements, typically with voltages of 6V to 24V.

How Do Lead Acid Batteries Work?

The oxygen in the active material (lead dioxide) reacts with hydrogen ions to form water, and the lead reacts with sulphuric acid to form lead sulphate. The ions moving through the electrolyte then create the current flow.

Can Sealed Lead Acid Batteries be Recharged?

Should your 12V lead acid rechargeable battery—or any sealed lead acid (SLA) battery—lose its charge, you can easily restore it with the right charger. Explore our range of lead acid battery chargers here.

Types of Lead Acid Batteries

Lead acid batteries come in several variations, each designed for specific applications and performance needs. These are:

Sealed Lead Acid (SLA) Batteries

Unlike traditional lead acid batteries requiring regular maintenance, sealed lead acid batteries are designed for convenience. Also known as valve regulated lead acid batteries, this battery’s sealed construction prevents electrolyte loss and leakage, making them virtually maintenance-free. With options like the popular 12V and 24V SLA battery, they deliver dependable power in a range of environments.

Gel Batteries

Gel batteries are named as such because silica is used within the battery to turn the acid into a thick, gel-like liquid and prevent the batteries from leaking. This type of SLA battery allows the electrons to flow between plates but doesn't offer the same power capacity as the same physical size AGM batteries would. Gel batteries alternatively excel in slow discharge rates and slightly higher operating temperatures, with an excellent deep cycle capability. Recharging these batteries must be done correctly or it will suffer a premature failure.

Absorbed Glass Mat (AGM) Batteries

AGM batteries contain a special glass mat that is made to wick the battery electrolytes between the battery plates. Only enough liquid is stored in the battery to keep the specially designed glass mat wet, so if the AGM battery is broken no free liquid can leak out. This type of sealed lead acid battery is preferred when a large number of amps are required. The life expectancy remains excellent in most cases if they are not discharged more than 60% between recharges and/or recharged fully every 3-6 months.

Applications of Lead Acid Batteries

Lead acid batteries are versatile power sources, finding applications across numerous industries in NZ and everyday situations. They deliver high surge currents and their reliable performance make them essential in various applications, such as:

• Backup Power Systems: Lead acid batteries ensure uninterrupted power during outages. They provide a reliable reserve, protecting essential equipment and maintaining operations.
• Emergency Lights: In the event of a power failure, lead acid batteries power emergency lighting systems, providing vital illumination for safe evacuation and continued operations.
• Uninterruptible Power Supplies (UPS): UPS systems rely on lead acid batteries to provide instant backup power to sensitive electronic devices, preventing data loss and equipment damage during power disruptions.
• Renewable Energy Systems: Lead acid batteries play a vital role in renewable energy systems, such as solar and wind power, by storing excess energy for later use. They enable off-grid applications and improve the reliability of renewable energy sources.
• Automotive: Lead acid batteries are the primary power source for starting engines in automobiles and other vehicles.
• Industrial: Lead acid batteries are the workhorses powering forklifts. They also play a vital role in industrial lighting, particularly for emergency lighting and backup lighting systems.
• Alarm Systems: Lead acid batteries provide backup power for security and alarm systems, ensuring they remain operational even during power outages.
• Communication Systems: Lead acid batteries maintain the operation of communication systems, including telecommunications networks and radio equipment, during power interruptions.

Shop Reliable Lead Acid Batteries for Your Power Needs!

As a trusted supplier and distributor, RS offers a comprehensive selection of lead acid batteries from renowned brands such as Yuasa, Enerys, and more.

Ensure uninterrupted power supply with our high-quality lead acid batteries, designed for durability and performance. Browse our extensive range today and find the perfect solution to meet your energy requirements.

Ordering & Delivery Information for NZ

Choose RS New Zealand to order lead acid batteries and other power components such asbattery connectors and power cables. For more information on our delivery details and fees, visit our delivery page.