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Voltage surge


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amg1971
New User

Dec 17, 2019, 5:32 PM

Post #1 of 10 (1709 views)
Voltage surge Sign In

garage says every 10 minutes i get a voltage spike from 50 miloamps to 100 miloamps in my ford 2010 escape it drains the battery.they cant find the orgin,taking the car to ford garage.
Any insight out there?


Hammer Time
Ultimate Carjunky / Moderator
Hammer Time profile image

Dec 17, 2019, 7:06 PM

Post #2 of 10 (1679 views)
Re: Voltage surge Sign In

What do you mean it kills the battery? 100ma would take an awful long time to kill a good battery.



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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.



amg1971
New User

Dec 17, 2019, 7:16 PM

Post #3 of 10 (1675 views)
Re: Voltage surge Sign In

A couple of days once was 2 weeks the other 4 days.


Tom Greenleaf
Ultimate Carjunky / Moderator
Tom Greenleaf profile image

Dec 17, 2019, 8:19 PM

Post #4 of 10 (1653 views)
Re: Voltage surge Sign In

Just a note for now seen between the lines.


This battery has been run "dead" several times now I take it (this matters) to a very low state of charge or not said if "flat" dead both matter how severe.


You could destroy a good battery easily once or too many times running them low. Also if flat dead really meant ZERO detected if exposed to cold enough electrolyte freezes solid.


How much can one take before it's in question not the vehicle? Still may have the draw that hides quite possibly not both till this ping-pong game is over if not found batteries of common lead acid types are not going to survive that,


T



amg1971
New User

Dec 17, 2019, 8:25 PM

Post #5 of 10 (1648 views)
Re: Voltage surge Sign In

no brand new napa battery jump once only


Tom Greenleaf
Ultimate Carjunky / Moderator
Tom Greenleaf profile image

Dec 17, 2019, 8:45 PM

Post #6 of 10 (1638 views)
Re: Voltage surge Sign In

OK, I like NAPA if at least a better chance batteries more likely to be handled properly before you buy one. Otherwise "new" isn't always good or up to much "going dead" or low enough to NOT start a vehicle.


Anyway here's a great standard was to find a parasitic drew here > http://autoforums.carjunky.com/...THE_BATTERY_P186624/ <
But if it's going to play hide and seek on you and still there it's going to be tough without a proven known stable good battery.


I had one within the year NEW a sealed "lead acid" doesn't matter what for same idea was bad new and took me several tries to prove it to myself to just swap for another new one.


It's fine that was with it untrusted on a workbench only see how long it would hold lost power all by itself was why is was out of machine with electric start found just low not totally dead but no crank. It did with another and has since, new machine with new battery start. Hair puller.


It was the battery I'm sure as can be. That took a while for prove to me never mind this case could be hard to know for absolute certain problem is found. That's all,


T



Hammer Time
Ultimate Carjunky / Moderator
Hammer Time profile image

Dec 18, 2019, 6:58 AM

Post #7 of 10 (1619 views)
Re: Voltage surge Sign In

Yes, following the procedure that Tom posted is the only way to find the source of the drain but I still say 100ma is not enough to do that. 60-70ma is a very common standard in newer vehicles.



~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.



Tom Greenleaf
Ultimate Carjunky / Moderator
Tom Greenleaf profile image

Dec 18, 2019, 7:30 AM

Post #8 of 10 (1606 views)
Re: Voltage surge Sign In

Yes! OP what I think is battery works but is less than 1/2 the available CCA when you need it. A way to see that is charge it with a charger in vehicle then attach just a fast volt meter you can watch how voltage drops when cranking or how much for other loads, interior lights just opening a door.
If you quickly see below about 10F after a single day then while cranking cold battery isn't up to anymore if it ever was,


T



amg1971
New User

Dec 22, 2019, 12:12 PM

Post #9 of 10 (1539 views)
Re: Voltage surge Sign In

car been sitting for 5 days and still runs,ford motors is going to be looking into it this week

Turn the light dimmer off and clean the glove compartment
Out.
5 days and still turns over?
Weird


Tom Greenleaf
Ultimate Carjunky / Moderator
Tom Greenleaf profile image

Dec 22, 2019, 12:51 PM

Post #10 of 10 (1532 views)
Re: Voltage surge Sign In

OK, It's hiding its worst on you. What other off the wall things do this, then behave?
>> That does include lights for glove boxes, hatches or hoods that might come on just when open or at an angle could be done either way.


This headlight dimmer do you mean for dash lighting AND asking if that also at max of adjustment turns on by force interior light? I can't know same vehicle with other option may or may not.
Some keep lights on till AFTER you've left and so on for a real treat to catch being wrong.


Do what you want but in my own I take bulbs out of stupid things like gloveboxes, dash or anywhere if lit, along with hood light or trunk/hatch lights if automatic to come on especially.


The trigger switches that tell them to be on can be off at angles or over misalignment of where it senses that easily.
Some is just me, handy lighting that a $1 flashlight left there would do never cause a problem,


Tom







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