Late model auto charging system question

Wotta Hoot.

With my heart I can not touch 36 vdc. Lay a forearm across 36vdc and feel the buuuuurn...

With my gen shed and batteries and Quicksilver I still have to be careful around 28.0 working volts.

All this evidence points to an irrefutable conclusion...

YOU CAN'T CURE STUPID

its a good thing the 36 volt dc systems for cars/trucks was trashed.. just to save on copper wire size..

Forcomparison, I checked a friend of mine's new F150 with 2.7L w auto start stop and OEM AGM battery about two hours after it was driven and the resting voltage was 12.35V. On starting, the initial charge current was 17A tapering down to 9A after several minutes of idling.

MEXICOWANDERER wrote:
I would LOVE to see an MEs white paper that details explicit data with regards to advantages of "cycling recharging" versus temperature compensated constant voltage.

X100. Nicely put!

The good old Ford alternator/voltage regulator/engine control CPU combination in our 2005 Ford chasis motorhome seems to be treating our coach batteries perfectly . At least they got it right 12 years ago.

Why can't all vehicle designs today just leave "good enough" alone in many areas and quit "fixin' designs that don't need fixin'? - Too many engineers and marketeers with too much time on their hands ... or compensation bonuses too high?

Wonderful. Take a system that has been working flawlessly for ninety years and screw it up in the name of "progress". Like Ford's 2-thread spark plugs in an aluminum head or GMs exposed slip ring end CS130 alternator bearing that magnetizes because of rotor flux. Six months passes and wipe your finger across the exposed bearing and the steel detritus may draw blood.

ANY CYCLING increases total kWh recharging which INCREASES aggregate positive plate erosion. This isn't guesswork. MHE. Pure MHE. What is "MHE"?

Pure Hookah Engineering.

I would LOVE to see an MEs white paper that details explicit data with regards to advantages of "cycling recharging" versus temperature compensated constant voltage.

If something is made complicated the maintenance factor goes to the SQUARE of complication.

"Hah! Am CAL WORTHINGTON and this is my dog, SPOT"

Chris Bryant wrote:
As I understand it, they now will let the battery run down a bit before charging- it is an algorithm- found this-
https://www.youtube.com/watch?v=FAJeDX-T-Eg

That's a pretty interesting video- Ford closely monitors current and temperature of the battery, and knows the state of charge. It will shut the alternator completely off.

Thanks for the link. Very informative and explains some of what I am observing. I think the charging algorithm my need to be adjusted for vehicles with auto start/stop. My wife's new car will sometimes fail to restart or the system will turn itself off and it seems to be related to low battery voltage.

As I understand it, they now will let the battery run down a bit before charging- it is an algorithm- found this-
https://www.youtube.com/watch?v=FAJeDX-T-Eg

That's a pretty interesting video- Ford closely monitors current and temperature of the battery, and knows the state of charge. It will shut the alternator completely off.