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Old Jan 6, 2024 | 12:14 PM
  #16  
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It's not a good battery. 12.1 volts immediately off the charger. The next morning, 7 volts. Just like jump starting, driving, and jump starting again.





 
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Old Jan 9, 2024 | 09:13 PM
  #17  
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What I am used to seeing in my truck cab, is for the voltmeter to show over 12 volts. Both the van and the pickup now have new batteries. I can relax for awhile.



 
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Old Jan 15, 2024 | 04:27 AM
  #18  
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Maybe it makes a difference. Maybe it doesn't. The Yellow Top which lasted 6 years was made by Johnson Controls. The Red Top which only lasted 20 months was made by Clarios. Now I'm running a GM battery in a Ford.








 
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Old Jan 15, 2024 | 08:10 AM
  #19  
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Originally Posted by steve(ill)
Your on borrowed time if your using a 7-8-9 year old battery.
Steve had the best (& correct answer).
In regards to a car/truck battery, anything over 6yr, even with daily driving is on borrowed time. Go buy a lotto ticket.

A good rule of thumb with auto batteries is: (assuming you have a properly running car with no parasitic draws & a properly working alternator)
A new battery WILL last you 3-4yr
A new battery SHOULD last you 5-6yr
A new battery CAN last you 7-10yr

Keep in mind, voltage in a battery is not a full measure of it's health. Batteries are also rated by amperage. More specifically, "cold cranking amps" - CCA. You can have a battery with descent voltage but it has lost it's ability to hold amperage so the truck with crank slower or not at all.

NO DEVICE is going to "fix" a battery. Once it's done, it's done. End of story. Battery tenders "can" make batteries last longer if used properly, but no charger or tender will fix it.
Buy a new battery that is the correct class & spec for the truck, skip the gimmick brands & get the best one you can with the longest warranty.
 
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Old Jan 19, 2024 | 04:17 PM
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A good rule of thumb with auto batteries is: (assuming you have a properly running car with no parasitic draws & a properly working alternator)
A new battery WILL last you 3-4yr
A new battery SHOULD last you 5-6yr
A new battery CAN last you 7-10yr
I routinely see longer life. With 6 vehicles, I learned when I had three bikes .... that maintainers are cheaper than buying batteries back to back, Maintainers ... not chargers ... keep a battery "up" and the recharging need "down".

Maintainers will only work if used always while parked for more than a few minutes. They work better if used starting when a battery is near new still.
 
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Old Jan 19, 2024 | 04:29 PM
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My bike came with an OEM maintainer. It was basically a Battery Tender with a Harley logo. Harley now uses a rebranded NOCO. Those are good. I have the 1 amp for the bike, and a 10 amp for cars.
 
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