OPTIMA YellowTop is made to install and forget. No matter the conditions, be it dampness, heat, dirt or exposure to extremes in vibration or regular discharge, it is guaranteed to deliver uninterrupted power throughout the entire discharge cycle. Its capacity to maintain high voltage during the discharge cycle means that you can take advantage of a larger part of the stored power in the OPTIMA compared to ordinary batteries. This is all thanks to OPTIMA's SpiralCell Technology ®, which combines the advantages of a starter battery with those of a deep cycle battery. The YellowTop will provide many more charge and discharge cycles when compared to the traditional lead acid batteries often used. It is also ideal for seasonal use because of its very low self-discharge rate.