VOLTSET 12V Solar car battery charger have a lifespan of 20 years.Suitable for trickle charging and maintaining 12v batteries. WHY DO YOU NEED VOLTSET 12V SOLAR BATTERY TRICKLE CHARGER MAINTAINER? Batteries naturally discharge - Automotive batteries naturally discharge when not in use.Vehicles have a small but constant battery drain - Modern vehicles have upwards of 30 body control modules (computers), alarm systems, immobilizers, and lock monitoring. These units all consume electricity from the battery.Battery life is shortened if it is not kept charged - A 12V battery that is not correctly maintained above 12.4V can suffer from sulphation. Sulphation is the main cause of battery failure. That's why the auto battery easily goes dead when vehicles are left standing for long periods.
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