the voltage leaking when i park my truck over night the battery died. on 2005 Chevrolet Colorado

please help .Thank you

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2 answers
You have what is called a parastic draw on the battery. You need to take it to a professional. Tell the shop you have a draw on the battery.
Often aftermarket alarm systems and radios may be installed in such a way they draw too much from the battery. The charging system needs to be properly tested as well. As you can see there are a few things to consider when checking your electrical system. We do have an excellent diagnostic technician here in South Sacramento.