Neighborly advise - Good or bad? - Page 2 - Ford Powerstroke Diesel Forum
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post #11 of 55 Old 03-30-2018, 03:23 AM
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The way i see it is
2 batteries connected parallel
12-14V system voltage
If the starter draws 200A to get moving, then that load is split between the 2 batteries. The only difference would be the DC resistance of the positive cable that connects the passenger side battery
That gives that battery less available current to apply to the load itself. That equates to more current applied to the load via the drivers battery. Keep in mind the current lost in the resistance mentioned still flows, itís just lost to heat
I agree thereís no need for rotation, and definitely not a need to replace cabling for maintenance.
I personally swapped my cables because, like the previous post mentioned, the connections were boogered up by the previous owner


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post #12 of 55 Old 03-30-2018, 06:14 AM
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Quote:
Originally Posted by mhatlen View Post

My last suggestion with these trucks is: get yourself a 190 amp minimum alternator for your truck. Its never a bad thing.
and if you talk to your other "neighbors "they will say that larger alternator will burn up your glowplugs


i don't talk to my neighbors anymore
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post #13 of 55 Old 03-30-2018, 06:19 AM
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Originally Posted by ZMANN View Post
and if you talk to your other "neighbors "they will say that larger alternator will burn up your glowplugs





i don't talk to my neighbors anymore


Lol this had me going in the AM


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post #14 of 55 Old 03-30-2018, 11:18 AM
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Quote:
Originally Posted by BigRed0202 View Post
That equates to more current applied to the load via the drivers battery. Keep in mind the current lost in the resistance mentioned still flows, itís just lost to heat.
Thank you for this post. It made me think. The obvious is that the Passenger battery supplies more of the load, but you are 100% correct: The DRIVER battery supplies 1/2 the starter current PLUS the losses from the interconnecting cable.

I don't worry about rotation or cabling, or anything else. The batteries will equalize when either the charging or starter current decreases. When one begins to die, the other will take up the slack until the two of them can no longer supply the load. I AM a believer in replacing batteries that are connected in parallel as a pair. Never individually except temporarily.

My biggest consideration to battery life is dealing with the parasitic draws that all these trucks seem to have. My 99 is not driven for weeks, sometimes months at a time. After dead batteries and replacing them on 18 month intervals because they didn't live very long lives being dead all the time, I installed an on-board 5-amp battery charger. I keep it plugged in if I don't anticipate driving it for at least a week. Battery life is now 4+ years. And it ALWAYS starts when I need it to.
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post #15 of 55 Old 03-30-2018, 11:34 AM
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Quote:
Originally Posted by DaveP. View Post
Thank you for this post. It made me think. The obvious is that the Passenger battery supplies more of the load, but you are 100% correct: The DRIVER battery supplies 1/2 the starter current PLUS the losses from the interconnecting cable.



I don't worry about rotation or cabling, or anything else. The batteries will equalize when either the charging or starter current decreases. When one begins to die, the other will take up the slack until the two of them can no longer supply the load. I AM a believer in replacing batteries that are connected in parallel as a pair. Never individually except temporarily.



My biggest consideration to battery life is dealing with the parasitic draws that all these trucks seem to have. My 99 is not driven for weeks, sometimes months at a time. After dead batteries and replacing them on 18 month intervals because they didn't live very long lives being dead all the time, I installed an on-board 5-amp battery charger. I keep it plugged in if I don't anticipate driving it for at least a week. Battery life is now 4+ years. And it ALWAYS starts when I need it to.

While weíre off subject here a little...

Iíve saved a few batteries with my noco G15000 15amp charger. Most recent was a 2013 e350 battery and a Maserati that the neighbor was going to chuck the battery.

I use nothing but yellow tops. All the top tier batteries never service longer than 2-2.5yrs for me. I have a set since 2011 and itís still strong. Another is since 2008 still in use.

I bought another exact one to pair it up to the old one and will be installing them in my 4x4 when I get a chance (thatís if Iím not ripping it apart for a project). I try to replace in pairs but sometimes the dice falls as they will and I take it as what it is.






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post #16 of 55 Old 03-30-2018, 02:06 PM
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My neighbor asked me why I would ever buy a diesel
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post #17 of 55 Old 03-30-2018, 02:10 PM
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My neighbor asked me why I would ever buy a diesel


B/c your left nut says so. Same with all the useless upgrades we do - same answer.


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post #18 of 55 Old 03-30-2018, 03:23 PM
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Quote:
Originally Posted by ZMANN View Post
and if you talk to your other "neighbors "they will say that larger alternator will burn up your glowplugs


i don't talk to my neighbors anymore
I remember the post very well but I do not recall the name. Only that its a shame the fella got so cross about that. Was all for not being hes no longer with us after the poor guy was crushed by the sky falling the next day.

Or was it a exploding glow plug........either way hes bye bye. Fricken Yahoo Potsy anyways

Dammit I must have missed my Geritol again this morning.
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post #19 of 55 Old 03-30-2018, 04:34 PM
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Quote:
Originally Posted by DaveP. View Post
My biggest consideration to battery life is dealing with the parasitic draws that all these trucks seem to have. My 99 is not driven for weeks, sometimes months at a time. After dead batteries and replacing them on 18 month intervals because they didn't live very long lives being dead all the time, I installed an on-board 5-amp battery charger. I keep it plugged in if I don't anticipate driving it for at least a week. Battery life is now 4+ years. And it ALWAYS starts when I need it to.
This is my cure to those parasitic draws:

https://www.powerstroke.org/forum/pow...our-truck.html

My truck sits for a week or two at a time. With solar, I installed my mentioned system and haven't touched it ever since. Flawless. Stretched my old lead acid batteries for a few more years. Just switched to AGMs last year. Curious to see how many years I get with this mod.
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post #20 of 55 Old 03-30-2018, 09:04 PM
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I've thought about solar. When it's in the yard, (where I normally store it) it is in the sun, and close to an outlet so I can plug it in. When it's in the street in front of my house (keeps the hood-rats from parking there, and the teenies from bangin' at night and throwing their condems in the gutter), but alas each house has a 75 year old Italian Stone Pine that canopies the entire block. So there's always shade over the street. So solar won't work. And it's why our street is so attractive to the teenies at night.
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