Optima Optima Yellow Battery 55 Ah YT U 4.2

OPTIMA YELLOW BATTERY 55 Ah. DUAL PURPOSE battery for starting and service. Thanks to SpiralCell Technology®, OPTIMA® combines the advantages of a starter battery with the performance of a service battery. In addition to delivering power longer, the OPTIMA® battery is also able to withstand a greater number of deep discharges and faster recharges than other technologies. So you can count on longer and more reliable operation of your accessories for many years. This makes OPTIMA® the best investment. Low self-discharge makes OPTIMA® batteries the ideal choice for vehicles used seasonally. During periods of inactivity, OPTIMA® batteries retain significantly more power than traditional batteries (the battery must still be fully charged before a period of inactivity). Internal components made of 99.99% pure lead allow OPTIMA® batteries to withstand a significantly greater number of charge and discharge cycles and continue to deliver a high percentage of their total capacity. OPTIMA® batteries are ideal for vehicles equipped with multiple on-board electrical accessories that remain operational even with the engine off.