My charger stop charging when i accidentally connected the battery i the wrong polarity. At first the charger displayed wrong polarity. I turned off the charger riht away. Although, i could smell some something burning. When i opened the caee, i found out it was a high wattage resistor that was burnt. I couldn’t figure a way to fix my charger. Pls help anybody. I just bought for $40 and only used it twice. It was an excellent charger when i first used it. It charges super fast.