2010 Nissan Sentra battery drain

[Nson]

So, I got a used 2010 Nissan Sentra about 2 weeks ago and it was running just fine but then the battery died so we had to buy another one. After about a week of driving it, the car drained the battery again. I thought there's no way the battery is dead again! We got the battery checked and it was still good, we also got the alternator checked and it was also good. Now every time we try to start the car the battery is always drained the next day. It won't start anymore unless we jump start it. What could be draining the battery?

[elwesso]

Welcome to NICO!

The easiest way to figure out where it's coming from is to unhook one of the battery cables, then put a volt meter (reading amps or milliamps) between the battery cable and the battery (to make the connection).. Then, one-by-one you can remove fuses from the fuse boxes, and see which one causes the amp draw to go down. By knowing that you can at least isolate where the drain is coming from and then it will be easier to pinpoint where there's an issue.