I'm genuinely concerned and hoping someone can tell me what's going on with my car. I have a 2013 Chevrolet Malibu and over the past few days, I've noticed a strong smell coming from under the hood after I drive. It smells like rotten eggs or sulfur, really unpleasant. At first I thought maybe something died in my engine bay, but the smell is strongest near the battery. I opened the hood after driving home today and put my nose near the battery and the smell is definitely coming from there. The battery isn't swollen or leaking that I can see, but the smell is very strong. I've been reading about warning signs of car battery failure and I saw something about a rotten egg smell meaning the battery is overcharging or has an internal short circuit. Now I'm scared to drive my car because I've heard that overcharging can cause the battery to explode or catch fire. Is that true? Could my alternator be faulty and pushing too much voltage into the battery? How can I check if my alternator is overcharging without special tools? I have a friend with a multimeter – what voltage should I see when the car is running? Also, if the battery is producing this smell, does it mean the battery is already damaged and needs to be replaced even if the car still starts fine? I don't want to spend money on a new battery if the alternator is just going to destroy it again. But I also don't want to risk my safety or my family's safety by driving a car that could catch fire. Is this smell dangerous to breathe? I have kids and I don't want them exposed to toxic fumes. Should I have the car towed to a mechanic or is it safe to drive slowly to a shop? I'm really worried and I need practical advice from people who understand car batteries. Please tell me what this smell means, how urgent the problem is, and what I should do next. I'm not a mechanic and I don't want to make a mistake that could hurt someone. Any honest advice would be greatly appreciated because I'm losing sleep over this.