Battery Voltage chart

[SJ]

keywords: battery voltage specific gravity charge charging dead hydrometer

Specific gravity included in the chart.

To accurately measure voltage you need a good digital voltmeter. Analog
voltmeters are pretty much useless.

Best way to measure the state of a battery is with a hydrometer.
Hydrometers are pretty cheap ranging from $3 to $10 at most auto parts
stores.
The best ones might cost a bit more as they include a thermometer for
temperature compensation.
Here is one for $7 . called E-Z Red
http://www.atlantasolar.com/product_info.php/products_id/1266

Temperature 80 deg F

%charge Volts   Spec gravity

100      12.70      1.265
95        12.64      1.257
90        12.58      1.249
85        12.52      1.241
80        12.46      1.233
75        12.40      1.225
70        12.36      1.218
65        12.32      1.211
60        12.28      1.204
55        12.24      1.197
50        12.20      1.190
40        12.12      1.176
30        12.04      1.162
20        11.98      1.148
10        11.94      1.134

Specific gravity changes by .001 for every 3 degrees Fahrenheit.
Fully charged battery will read:
1.272 at 40 F
1.265 at 70 F
1.252  at 100 F


> Message: 7
> Date: Fri, 7 Jan 2005 12:19:56 EST
> From: SuffolkD at aol.com
> Subject: Re: Battery Voltage chart
> To: quattro at audifans.com
> Message-ID: <1c3.224c7340.2f101ebc at aol.com>
> Content-Type: text/plain; charset="US-ASCII"
>
> Heres WHY I change subject threads & headers.
> If correct, below is an excellent chart of battery voltage I'd like to
find
> again..........but its keywords are:  Subject: Re: Fuel pressure issues
> Try googling a match with "battery, (anything)"
> HTH - Scott by BOSTON