Zivan charger won't charge

My zivan charger blinks yellow green and beeps. I have gel batteries and have it set to c for gel batteries. What am I doing wrong!?

Hi there, I don’t have much knowledge about the battery, but when you buy a battery they provide you the manual guide to use it. Most of the time the weather conditions affects the battery performance. Recently my grandpa also faced this same problem and his charger was not working well. He bought a new charger from https://www.spinlife.com/critpath/match.cfm?categoryID=521. I think you can also check for it.