Honda Civic Forum - 2008 civic battery keeps discharging

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2008 civic battery keeps discharging

Hi y'all...my 08 civic battery keeps discharging after about 3 hrs . i changed the alternator and bought a new battery and still same issue. Any ideas what might be causing this?

thnx

Re: 2008 civic battery keeps discharging

Drain on the battery when everything is supposed to be off.
Measure, trace, diagnose.

Most common is a stuck relay that keeps the AC compressor clutch engaged.
Check clutch, then tap on the relay see if the clutch lets go.
If it was stuck, replace with updated part:
Updated relay brand is MITSUBA
Updated Honda part number is 39794-SDA-A05

You must ask for this part number at your Honda dealership, most parts people just look up the original relay and don't know about the updated part.
An original part will eventually have the same issue later on.