Big 3 wiring upgrade

[ClawSS]

I guess still being on the OE battery would be the real culprit in any issues that arise. I see numerous posts of batteries dying. About to get the "cold-snap" here in KY, so will see how it lives through that.

 

[H3LZSN1P3R]

I guess still being on the OE battery would be the real culprit in any issues that arise. I see numerous posts of batteries dying. About to get the "cold-snap" here in KY, so will see how it lives through that.

You may be fine Im still on the original batts in my 19 they seem to be doing well in out -40 weather while running my plow also but i do have dual 220 alternators that does help

 

[ClawSS]

You may be fine Im still on the original batts in my 19 they seem to be doing well in out -40 weather while running my plow also but i do have dual 220 alternators that does help

Hemis turn over easier than the diesels...especially in cold-cold.

 

[AH64ID]

I guess still being on the OE battery would be the real culprit in any issues that arise. I see numerous posts of batteries dying. About to get the "cold-snap" here in KY, so will see how it lives through that.

If you size the alternators correctly the batteries aren't in play with large AC loads, its only when you need more current than the alternator can supply that the battery provides power while the engine is running. Another reason to get a 2nd alternator.

 

[el_barto]

The second alternator on the Hemi (I’m guessing Cummins too) is on a separate belt. But no it’s not super easy to add… requires different Coolant hoses, brackets, etc.

If I was ordering a new truck I’d absolutely add the dual alternators. But it’s too much work to retrofit, IMO.

I did upgrade my Power Wagon stock alternator from the 180 to the 220

 

[AH64ID]

The Cummins is not on a separate belt. I bet that's why the Hemi is limited to a 160A on the 2nd Alternator.

It's still probably a good idea to upgrade to a 2nd Alternator for high amp use.

 

[H3LZSN1P3R]

Hemis turn over easier than the diesels...especially in cold-cold.

True but my truck is plugged in so its not that much more

 

[jsalbre]

The Cummins is not on a separate belt. I bet that's why the Hemi is limited to a 160A on the 2nd Alternator.

It's still probably a good idea to upgrade to a 2nd Alternator for high amp use.

With that location low and on the side it could be a physical space issue too. The 220A is definitely bigger than the 160A.

 

[AH64ID]

Hemis turn over easier than the diesels...especially in cold-cold.

But they also have 1/2 the CCA's, so I think it evens out in the end. The FSM says up to 350A for gas starters and up to 700A for diesel starters.

 

[ClawSS]

Resurrecting...The single amplifier chosen will draw a peak of 2500w . I may cause the lights to dim if I crank it too hard at a 12.6v feed. I hope the alternator pushes 14v most of the time.
The second amplifier could push me way over and require an upgrade.

 

[23 CTD ED]

Hey, my 1st post. lol
BIG 4 now...