1 /5 Monica Garls: I came in and said that something keeps draining my battery (e.g. parasitic drain) and I asked if they could diagnose it. They said yes. After less than an hour, they said that there is no problem, and that my battery is drained. They only checked that charging system and starting system, which I already had checked by AAA. Diagnosing a parasitic drain takes a lot more time, and if they werent going to do it, they should have just said so. So now Im out $140 only for them to tell me what I already know. I really feel that they owe me a refund.