coachgeo
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Think it would help 24v (all electric) AC cause it would be wise to turn it on before starting a trip in hot weather since they cool massively slower than an engine driven compressor AC (they have 1/4 to 1/2 the btu's) .Adding a AC unit really will not effect Reserve Capacity or Cranking Amps. It's more for if you want to run things when you are not running the engine. If you have a camper on the back you can run on battery longer and still get your truck running. It's like a fuel tank... the more capacity you have give you longer run times... Also with cranking amps you will start the truck easier in cold weather. More will make the truck turn over eiser on a very cold day...
For a camper I would hope someone has a seperate battery bank and an isolation charging solenoid between them and truck batteries. Probably would be best to do that for an all electric cab AC too now that think about it.
better cold weather starting improvement sounds good though
side note: appears it is becoming more and more popular for those who add solar on camper/house batteries, to have a smart battery charger (dc to dc) that will one direction charge from solar house batt's to truck batt's in combination with typical isolation switch between camper and truck alternator charging.... or even completely in lue connecting truck to house batt's for alternator charging.
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