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1999-2007 General Questions General questions related to 1999-2007 Super Duty trucks. If it doesn't fit the other categories, post it here. Gas engine discussion that pertains to all models is allowed. Specific gas engine questions should use the Gas Engines forum.

Thread: 7.3L Won't start Super fast clicking sound Reply to Thread
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  Topic Review (Newest First)
09-13-2018 05:12 PM
ArcticDriver https://www.batteriesplus.com/blog/power/charge-on

I have a NOCO but I still find it more reassuring to unhook my batteries when I am gone for any length of time.
09-13-2018 03:07 PM
RT I think that has to do with the evolution of trickle chargers. The old ones were simply low amperage chargers - nothing to stop them when the battery was fully charged so they would slowly cook a battery to death. The newer ones have sophisticated algorithms that control the charging - constantly monitoring the battery voltage and only applying current as necessary. I have the NOCO Genius chargers on both of my antiques. They have a very sophisticated charging system and I've got 10+ years on the batteries in those vehicles with no issues whatsoever.
09-13-2018 01:45 PM
losfinch
Quote:
Originally Posted by ArcticDriver View Post

I have also read the common practice of trickle chargers is also a battery killer.
Just wondering why trickle chargers are considered battery killers?
08-30-2018 08:50 PM
DonWarkentin
Quote:
Originally Posted by ArcticDriver View Post
I think.both of you have valid points.

Heat is a killer but I think a frequent heavy draw on a lead acid starter battery also shortens battery life. Such as that from glow plugs and starter demands of a cold engine.

Proper battery and charging system maintenance by making sure all cable connections are bright & tight, cleaning posts, using felt washers, occasionally topping off with a goid charger, etc can all help to protect the batteries.

I have also read the common practice of trickle chargers is also a battery killer.

And, again, you guys are both right, 2-5 years is the typical life of a lead acid battery.
That's why I switched to Odyssey extreme 65-PC1750T batteries, because I was only getting two years per set of batteries. Hopefully, I will get at least six years with these.
08-30-2018 04:58 PM
ArcticDriver I think.both of you have valid points.

Heat is a killer but I think a frequent heavy draw on a lead acid starter battery also shortens battery life. Such as that from glow plugs and starter demands of a cold engine.

Proper battery and charging system maintenance by making sure all cable connections are bright & tight, cleaning posts, using felt washers, occasionally topping off with a goid charger, etc can all help to protect the batteries.

I have also read the common practice of trickle chargers is also a battery killer.

And, again, you guys are both right, 2-5 years is the typical life of a lead acid battery.
08-30-2018 12:56 PM
DENNY The starting power required has little to do with battery live. Heat is the big killer of batteries. Mine usually last 6 years or so, we seldom see temps over 70 degrees. It could be a diode in the alternator, it will not properly charge and will not trigger the ALT light. I have had this happen twice. I would check that once you get it running.
DENNY
08-29-2018 01:38 AM
DonWarkentin Batteries only last about two years in these trucks, because it takes so much power to start them.
08-28-2018 11:55 PM
klhansen Or battery cable connections.
2 year old batteries aren't "new" or necessarily good.
08-28-2018 09:43 PM
jleedog Batteries?
08-28-2018 09:27 PM
D Kinney
7.3L Won't start Super fast clicking sound

Started this morning Went to went to start it this afternoon, does nothing if you open the door and pull the key out of the ignition super fast clicking sound Any idea Ok batteries are Bosch 900 amp 1400 cca 2 years old at most I will swap my old batteries out with Some 1 year old batteries I also have a charger that will run a repair cycle before charging and if I can
Get the truck running I can test the alternator with the charger So I try this first before I swap

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