Hi,
I think you may be on to something with the battery voltage dropping after a few start up in succession.
A warmed up battery, say from engine heats and alternator excitation will react differently for a short time.
A battery in good charge, that is with its plates of each the cell having decent capacities, the whole battery should return up to very nearly to what was its resting charge within about thirty seconds.
Most anything above 12.5+ volts is considered a working battery.
12.4 volts, at rest for say overnight, means the battery is only half charged or less.
On todays sealed batteries a load test is the only way to lock down on the battery’s condition short of measuring the electrolytes density.
A low density means the solution has gotten into the plates and charging drives it back out.
Eventually the plates become too resistant to continue working.
It is beginning of saying that the cells are getting depleted of life expectancy.
If the battery goes down quickly and after being put onto a charger to charge, it comes back up very quickly to chargers voltage the cell or one cell in particular maybe a problem.
In actuality, the cells as a whole set do not ever get fully charged as current flow stops entirely if one cell blocks the chain.
If a carbon cell, alkaline or rechargeable flashlight goes dead and it has more than one battery cell …… please check the others in the light. You might find that the others are still capable of being used longer.
Car batteries are being used the same way but you cannot separate the good ones from a bad one.
Even still with this knowledge if one cell is troublesome they all will be soon.
The aging part is significant to all.
It’s the nature of lead acid or chemical cell batteries.
Follow those instinctive signs you are seeing, I would or have before!
Electric cars will be faced with the same issues if they continue to promote batteries as a power source.
Haven’t we learned anything since the late 1800’s?
There’s been Nuclear since the mid 1900’s and it is not a consumer friendly rated concept at all!
Photo cells and Fuel cells that have gone into space and with no mechanics or service calls.
Their NASA lives lasted longer than we ever expected too.
Apparently we have capabilities.
Hydrogen has spread out throughout the universe as with carbon in many forms.
So I ask, for an explanation of why are we still manipulating “hazardous waste chemicals” like lithium or uranium.
Haven’t we learned anything?
Yes, I have a clue, don’t you?
Phil
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