OPTIMA RTC4.2 Battery 12V 50Ah Red

High Cranking Power, Extremely High Resistance, Fantastic Reliability.

Designed for Military Use, now offered to the public, a demanding audience that does not settle for less. Built in the USA with patented SpiralCell technology, they guarantee unmatched durability and performance. Long lifespan (at least double compared to traditional lead-acid batteries) and exceptional performance: a small model measuring 25cm in length and 20cm in height has a cranking power (CCA EN -18°) of 815A!!! A monster in its category! 815A of cranking power in 50Ah. The RedTop Line is specific for STARTING. With just a few ampere-hours of capacity, it can deliver a HIGH CRANKING POWER, necessary and sufficient to start even the most demanding engines.
However, this has a small disadvantage: the battery is not designed for Deep Cycle use, meaning cyclic use. This type of battery cannot be used for services, as a deep discharge can irreparably damage it and render it unusable. No campers or general services: only Engine Starting (Car, Jeep, Off-road, Camper, Boat).

The secret lies in their special technology, patented in the USA, called SpiralCell. This technology elevates AGM performance (Optima batteries are indeed AGM type, not GEL as many in the industry often believe) to an extremely high level. At the center of every OPTIMA battery is a series of individually wrapped spiral cells, made up of two pure lead (99.99%) plates coated in a lead oxide coating. One coated plate is positive and the other is negative. Each lead plate consists of a continuous cast ribbon that maintains critical thickness tolerances. The two plates have a proprietary separator (this key component is actually made of a mixture of micro-glass fiber that resembles fine cotton) that serves two fundamental functions: preventing the two plates from touching and keeping the electrolyte uniformly suspended. The unique manufacturing process and precision-controlled spiral winding of continuous lead plates is much more expensive than building traditional flat-plate AGM batteries. The 12-volt OPTIMA batteries are made of 6 SPIRALCELL cells, each having an open-circuit voltage when fully charged of 2.2 volts for deep cycle batteries and just over 2.1 volts for starting batteries. OPTIMA has built over 100 million individual spiral cells since the early 1990s. No one knows how to build the highest quality and best performing spiral batteries like OPTIMA. Therefore, if you want a BATTERY THAT IS THE BEST FOR PERFORMANCE, QUALITY, DURABILITY, and RELIABILITY, you should choose OPTIMA BATTERIES.