POWOXI-Upgraded-20W-Solar-Battery-Charger-Maintainer, External Smart 3-Stages PWM Charge Controller, 12V Solar Panel Trickle Charging Kit for Car, Marine, Motorcycle, RV, etc

As we all know, batteries will drain power naturally.If the batteries are short of power for a long time,the storage function of the batteries will be weakened, and even be dead.The product is a solar cell maintainer and 12V battery charger,which can maintain battery throughout the season.Efficient solar panels absorb intense sunlight and convert it into electricity for transmission to 12V batt...