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Re: when the battery is said fully charged?
Ray O wrote:[color=blue]
> <wenmang@yahoo.com> wrote in message
> news:1133376008.733801.155460@f14g2000cwb.googlegroups.com...
>[color=green]
>>Hi,
>>
>>I am wondering when the battery is said fully charged? I like to
>>measure the voltage of the battery to see whether it need to be
>>replaced(6 yrs old), thanks.
>>wm
>>[/color]
>
>
> A fully charged battery will be somewhere between 12 and 14.4 volts.
> Voltage alone is not an indicator of whether the battery needs replacement
> or not.
>
> If you live in a very hot or cold climate and the battery is 6 years old,
> I'd think about getting it replaced soon.[/color]
Actually the voltage is a really good indicator of battery condition.
Fully charged at about 13.8 to 14.2 volts and a voltage check under a
load test will confirm its abilty to deliver the power properly.
Basically with a 150 amp load for 15 to 30 seconds, the voltage should
stay well above 11 volts the whole time. It it drops steadily during the
test without leveling out after a few seconds or so, the battery is
getting soft or not properly charged.
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