Optima - Powering The Mobile World
From humble beginnings during in the seventies, Optima has grown into a world leader in power cell development and design. Originally known in the early days simply for it's robust batteries, Optima is credited as creating the world's first maintenance-free lead acid cell. From here it expanded its horizons into gel-cell technology, including its world famous spiral-cell designs; thenceforth into DIN sized batteries. Though still producing these bulletproof fundamental designs, Optima is again expanding it's repertoire to include future technologies. This will allow the company to deliver sustainable next generation performance, reliability, safety and comfort to everyday lives worldwide.

Yellowtop Series - The Ultimate Deep Cycle Cell
The Yellowtop range of high performance AGM batteries are one of the very few on the market that are truly dual use. With premium starting power and impressive cycling capabilities, the heavy duty Yellowtop cells are perfect for today's vehicles that are packed with accessories. Their low internal resistance provides more consistent power output and faster recharge times; this is conducive to deep-cycling, incredible starting power, up to triple the service life and far more resistance to vibration. On top of this the Yellowtop batteries are leak proof, able to be mounted in virtually any position, maintenance-free and offer more than three-hundred discharge / recharge cycles.

Design Ideologies
With a half century history of technological innovation and engineering, Optima products offer unstoppable power for extreme enthusiasts who require the ultimate power source. Adding more and more advanced technologies to its batteries, Optima has lead the way in power cell development ever since.

Absorbent Glass Mat
Sealed absorbent glass mat (AGM) batteries like Optima batteries do not spill, sulfate or degrade like flooded batteries do. AGM designs hold the electrolyte in suspension while keeping it in constant contact with the active lead material on the plates. This results in higher efficiency when both discharging and recharging.

AGM designs offer lower internal resistance and greater plate area. This is conducive to superior starting power, the ability to recharge much faster and higher voltage characteristics during discharge. The key benefits of AGM cells are the following:
– Impressively high cranking characteristics in a small battery.
– Higher charge acceptance during AGM battery charging.
– Sealed maintenance-free design.
– Virtually spill-proof.
– Shock and vibration-resistant.
– More power per pound as compared to standard batteries.
– Long service life.

Spiral-cell Technology
The heart of Optima’s spiral-cell technology is a series of individual spiral-wound cells composed of two near pure 99.99 % lead plates coated in a precise coating of lead oxide. This breakthrough in battery design delivers more power and consistently outperforms conventional flat-plate batteries. Each lead plate is manufactured as a continuously cast strip that maintains critical thickness tolerances. The two plates get a proprietary separator, this key component is actually made of a micro-fiberglass blend that feels like fine cotton. This performs two critical functions; keeping the two plates from touching and holds the electrolyte in a uniform suspension.

The unique manufacturing process of spiral winding continuous lead plates is far more precision controlled and expensive than building traditional flat plate AGM batteries. Custom automated cell winding machines are required to maintain the close tolerances required to maintain quality and performance. Each completed spiral-cell ends up looking somewhat like a precisely wound jelly roll. Critical tolerances, temperatures, humidity and automation processes are maintained and constantly monitored during construction. Optima batteries’ precision moulded cylindrical cases are manufactured to such tight tolerances that only virgin polypropylene can be used. This ensures perfect and uniform compression once the spiral-cell is inserted, thus avoiding any potential contaminants or impurities from pre-used plastics. All 12 Volt Optima batteries are made of six spiral-cell cells, each having a fully charged open circuit voltage of 2.2 Volts for deep-cycle batteries and just over 2.1 Volts for starting batteries. Not to brag but Optima has built more than 100 million individual spiral cells since the early nineties. No one knows how to build the highest quality and best performing spiral-cell batteries better than Optima.

Shallow Cycle Or Deep Cycle?
Shallow cycle batteries excel in high start output situations where only light surface cycling takes place. The deep-cycle battery is designed for applications that require deep, repetitive amperage drain, like trolling motors, electric wheelchairs, recreational vehicle house power and in-start applications where the system load exceeds the alternator output for a short duration. They also act as a voltage stabilizer in the electrical system, evening out voltage spikes and preventing them from damaging other components in the electrical system.

Shallow cycle batteries are typically used for short enormous bursts of power, such as starting your engine or running light electrical loads. They also supply extra power when the vehicle’s electrical load exceeds the supply from the charging system.

Deep cycle batteries on the other hand are well suited to high-performance car audio and emergency vehicle applications, just two examples where the system load repeatedly exceeds the alternator output. When the engine idles and the alternator output drops, the deep-cycle battery can continue to support the load with high current and then recharge fast when the engine speed and alternator output increase. Each time this happens is called a cycle, and this can occur multiple times throughout the vehicle’s workday. Public safety vehicles, commercial fleet delivery vehicles, marine craft and vehicles fitted with aftermarket accessories find the Optima deep-cycle is the solution for overworked systems. Just as an aside; if you’re browsing a car audio website like ours then you’ll likely want a deep cycle cell.

Design Features
The Optima Yellowtop batteries have the following features unique to their design:
– Dual purpose deep-cycle and starting battery.
– Serious cranking power.
– Up to triple the life span.
– Far more resilient to vibration and shock.
– Virtually spill proof.
– Mountable in virtually any position.
– Maintenance-free design.
– Faster recharging.
– Optimal starting power.
– Well over 300 discharge / recharge cycles.

Electrical Specifications
– Nominal configuration: 12 V deep cycle battery
– Cold cranking Amperes (CCA): 450 A
– Cranking Amperes (CA): 980 A
– Reserve charge @ 25 A (RC): 66 min
– 20 hr nominal capacity (AH): 38
– Terminal type: SAE
– Post orientation: right hand

Physical Specifications
– Length: 236 mm
– Width: 128 mm
– Height: 226 mm
– Weight: 11.8 kg

Documentation
– Specifications sheet
– Technical sheet

Important Disclaimers
Given the dynamic nature of electronics industries these days; below are listed some very important specifics you need to be aware of.

Brand Authorization And Stock Sourcing
We are a fully authorised Australian dealer of this brand and all stock is sourced through legitimate channels. It therefore enjoys full Australian warranty, backing and support.

Pricing Structure
Whilst we endeavor to offer the best price possible, we ask that if you do find a better price elsewhere from an authorised dealer; please contact us. Also be aware that we regularly conduct group buys and sales, therefore pricing can sometimes be subject to change without notice.

Stock Structure
Being a dynamic store is conducive to our inventory constantly changing. We list only a small portion of our stable online, usually products most popular. Aside from these we also stock numerous other variants and configurations of these products, hence if you don’t see what you’re after please contact us.

Shipping
All our products are shipped with registered and insured postage. Upon ordering you’ll be issued with a receipt, a consignment note via which you can track your order, and we’ll also SMS you photos of the package for identification purposes.

Technical support
This last one we cannot emphasise enough! Please contact us if you require any further information or assistance with the setup and use of this product, especially pertaining to aspects more technical. As we want you to get the very best from this product.