Since the sealed design of a VRLA battery prevents spillage and movement of the internal electrolyte solution, these batteries can be installed in more positions than their wet cell counterparts.Īs the name suggests, a characteristic of VRLA batteries is a pressure relief valve that activates to vent excess gas under normal operating conditions. Optima batteries are classified as maintenance-free because of the SpiralCell configuration. In essence, the sealed design prevents evaporation inside the battery. VRLA batteries are fully sealed and often billed as “maintenance-free,” meaning they do not require owners to “service” them with distilled water to maintain the electrolyte levels (although you should do some periodic DIY maintenance, like making sure the battery terminals are clean, for example). VRLA batteries differ from conventional wet cell batteries in several key areas: Maintenance-Free Design While there are different types of car batteries for internal combustion engines, two of the most common are flooded lead acid, also known as the wet cell, and valve-regulated lead acid (VRLA). Optima batteries feature six individual spiral-wound cells composed of two pure (99.99%) lead plates coated in lead oxide. Better starting power in harsh weather, be it extreme cold or heat.This prevents the active paste from coming loose and causing plate-to-plate shortening, which can impact service life and performance. More vibration resistance than conventional car batteries as Optima’s design and manufacturing processes lock the plates under the tightest possible compression.Longer lifespan, better recharge capability, and improved deep-cycle capability for vehicles with demanding electrical loads versus traditional automotive batteries.Optima’s SpiralCell technology offers a few proven benefits. The SpiralCell (or jelly roll) is inserted into precision-molded cylindrical cases that utilize virgin polypropylene or polypropylene resin that has not been recycled (minimizes contaminants or impurities from pre-used plastic). To maximize the effectiveness of the SpiralCell design, Optima employs a specific manufacturing process that includes custom cell-winding machines. The separator keeps the two plates from touching while also holding the electrolyte in uniform suspension.Īll 12-volt Optima batteries are made of six SpiralCells, each having a fully charged open circuit voltage of 2.2 volts for deep-cycle batteries (YellowTop) and just over 2.1 volts for starting batteries (RedTop). Meanwhile, the two plates have a proprietary separator made of a micro-fiberglass blend that feels like cotton. The continuous cast strap joins adjacent cells and eliminates welds that would otherwise cause resistance and corrosion points between the cells.

These spiral cells resemble a pastry you might find at the local bakery, hence why Optima batteries are sometimes noted for their “jelly roll” look.Īs described by Optima, the pure lead plates are manufactured as a continuous cast strap that maintains key thickness tolerances. Optima’s SpiralCell design consists of individual spiral-wound cells composed of two pure lead plates coated in lead oxide. The average Optima battery has only about 30 internal components, whereas traditional flat-plate batteries may have well over 100. This design, unique to Optima, results in a less complex and more efficient car battery. Optima is the only battery manufacturer to feature SpiralCell Technology, giving each a unique shape and form, which the brand calls its “Six-Pack” design. Optima batteries are available in four variants: RedTop and YellowTop for automotive applications, BlueTop for marine and RV, and the OrangeTop for side-by-sides, motorcycles, and four-wheelers (powersports applications).īelow, we cover the primary features of each and take a closer look at Optima’s technology. Since the 1970s, Optima batteries have earned a reputation for being a reliable and durable battery for cars, trucks, SUVs, boats, and commercial vehicles. Optima Batteries FAQ Optima Batteries Overview

Optima battery types