I have a 20002 Honda accord 2 door v6. I let the car sit for one day and when i went to get into it the keychain wouldn't unlock the car. I had to use the key to gain entry. I tried to start the car and it did nothing. Dead as a door nail. I jumped the car and upon touching the terminals the to the powered car the alarm went off and continued until i was able to reset it with a series of igintion turns and locks with the key chain. I had the battery tested and it was fine. The next day after 14 hours or so the battery was dead again. I had it tested again and it was dead holding only 3 volts. I just replaced the battery. I had it tested again over time and it checked out fine. I'm having slow starts, what can it be.
Sounds like you have a draw on the system that's draining your batt. A paristic draw test needs to be performed. The draw shouldn't exceed 50mA. A draw more than that will drain the battery in no time. Also check the alternator for proper operation and output. The low battery voltage from the draw can be causing your slow cranks in the morning. The rest of the day it probably cranks over fine, right. This is because the alternator is charging the battery while driving. The biggest culprit for exessive parisitic draw is aftermarket accessories. (alarm systems, remote starters,stereo amps ect.) If you don't have any aftermarket devices installed than it could be as simple as a light left on or as difficult as a faulty input to the body computer (B-can) which isn't allowing the computer to go to sleep. -hope this helps
2 things, not enought cold cranking amps, or while you where trying to start the car the brushs inside the starter caused a ark on the armature causing the starter not to be working at 100% option 1 have a drain test done or 2 replace the starter the drain test will show how much amps its taking to spin the starter if its pulling a high amount of amps/votage to spin the start then replace starter
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