Grit dog
Black Diamond, WA
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Joined: 05/06/2013
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Only 1 guy suggested that it may not jump start the truck. And he may be right since the OP likely has a diesel since he said batteries, plural.
However the OP is preparing for another bad alternator. In which case a jump start would not help him at all. And the equalization of 1 - 200ah battery into 2 ea 100+ ah lead acid batteries wouldn’t get him far unless it is a 30 year old mechanical injection diesel and he can drive with no other or few things using any power.
There’s a whole bunch of hokey riggin including a jump start that “may” get him down the road a little ways, but none of that matters if one is “preparing” to handle that issue.
Fck, just pack a spare alternator and a jump pack or cables or both. No need to get fancy. Just bring the part you’re worried will break. And if you’re not totally unobservant you’ll see when it quits before you use up much of the battery reserve.
The weird tangents that get explored or entertained on this forum are quite often completely baffling….
2016 Ram 2500, MotorOps.ca EFIlive tuned, 5” turbo back, 6" lift on 37s
2017 Heartland Torque T29 - Sold.
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MrWizard
Traveling
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Joined: 06/27/2004
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A spare alternator is less expensive than replacing damaged batteries, has the advantage of being on hand, just install it and be on your way again, a preemptive strick, be prepared and have it ready , insurance like carrying a spare tire and engine belts
I can explain it to you.
But I Can Not understand it for you !
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Jim/VA
WA
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Joined: 07/24/2005
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Thanks for the input folks. I was just trying to sort out the practicality of charging from one type of battery to the other. I suspect the BMS won't allow it and if it did, the rate of charge would be more than a depleted LA battery could handle. I already keep tools plus a spare belt and water pump among other things. Why not throw in an alternator, I suppose?
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Grit dog
Black Diamond, WA
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Never hurts to be prepared. Murphy’s law and superstition basically dictate the need for what you’re prepared with will somehow be less necessary than the stuff you arent prepared for…..lol.
The key is knowing when to say when, with spare parts, or with a vehicle that is too old or unreliable to fit your needs/abilities or lifestyle.
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