There are multiple reasons why your car’s battery is constantly being drained. First off, parasitic drain or the electrical load on your vehicle’s battery could be overloading it. Things like interior lights, improperly installed aftermarket accessories, or a short circuit in your electrical system could be the problem. Another thing to look out for is your alternator, which is responsible for charging your battery while your engine is running. It could also be a battery issue, a malfunctioning ignition switch, a wiring issue, or an electrical system failure. Overall, it’s best to narrow down the problem by having a professional mechanic at Belly Brothers Auto Tech look over your vehicle.