Tim C
Junior Member
Ok, so I’m still having a battery drain issue. After a couple of days of sitting, the battery would drain to the Point where the truck would not start. I’ve just put a new battery in.
It’s a 2011 Ram 1500 with the Hemi.
I’ve done the diagnosis as mentioned in many threads:
Jumper the hood switch.
Connect the multimeter between negative post and negative wire clamp.
Close/lock doors.
Let everything settle for an hour.
Watched the multimeter for 15-20 minutes (probably longer) for spikes (There were none).
After that time, amp draw is consistently bouncing (every second or so) between .013 and .017 amps.
Pulled the fuses one by one. The only thing that made a difference was J13 - IOD Main. Pulling that settled the amps down to a steady .010 amps.
So... a couple of questions. Is .017 amps enough to drain the battery in 2-3 days? The second question, if it really is the IOD, what is my next step in the diagnosis?
****Update:
I’ve done a more thorough investigation today and have better information.
I hooked up my meter in the same way but his time I put a GoPro on it. I was able to better review the results. Over the course of about an hour and twenty minutes I had 5 spikes that lasted between 45 and 55 seconds. It spikes to around 2 amps, hovers around between 1.8 and 1.5 amps for most of the time then drops to 1.0 amps for a second or two before dropping back to .013 to .017.
There is no consistency in the timing of the spikes. The second spike started after 3 minutes from the first. The next spike started 8 minutes later, the next 9 minutes. From the last spike to when my camera battery died it was 44 minutes.
Any suggestions on where to go from here?
Any help would be super appreciated!
Thanks!
It’s a 2011 Ram 1500 with the Hemi.
I’ve done the diagnosis as mentioned in many threads:
Jumper the hood switch.
Connect the multimeter between negative post and negative wire clamp.
Close/lock doors.
Let everything settle for an hour.
Watched the multimeter for 15-20 minutes (probably longer) for spikes (There were none).
After that time, amp draw is consistently bouncing (every second or so) between .013 and .017 amps.
Pulled the fuses one by one. The only thing that made a difference was J13 - IOD Main. Pulling that settled the amps down to a steady .010 amps.
So... a couple of questions. Is .017 amps enough to drain the battery in 2-3 days? The second question, if it really is the IOD, what is my next step in the diagnosis?
****Update:
I’ve done a more thorough investigation today and have better information.
I hooked up my meter in the same way but his time I put a GoPro on it. I was able to better review the results. Over the course of about an hour and twenty minutes I had 5 spikes that lasted between 45 and 55 seconds. It spikes to around 2 amps, hovers around between 1.8 and 1.5 amps for most of the time then drops to 1.0 amps for a second or two before dropping back to .013 to .017.
There is no consistency in the timing of the spikes. The second spike started after 3 minutes from the first. The next spike started 8 minutes later, the next 9 minutes. From the last spike to when my camera battery died it was 44 minutes.
Any suggestions on where to go from here?
Any help would be super appreciated!
Thanks!
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