Q: Changed battery twice in 2 weeks, I go to turn on and car is completely dead not even the lights work, what could it be? 2000 Acura TL

Hi there - a repeating "dead battery" scenario has a couple of possibilities. One possibility is a bad alternator that is not charging properly. With the engine running, the system voltage should be close to 14 volts if the alternator is charging correctly. The second possibility is that something is draining the battery when the car is turned off. This problem can be diagnosed by connecting an ammeter to the positive (red) battery cable, observe the current drain (likely less than 1 amp), then, one at a time, remove each fuse, check to see if the current drain has dropped to near 0, then reinsert the fuse. This process should identify the faulty circuit in most cases. A professional mechanic, like YourMechanic, can perform this diagnostic procedure for you, and replace/repair the failing component.