With a fully charged battery (12.68 volts) and engine running at idle with no accessories on, 14.5 volts. You will not get a accurate reading if the battery is not fully charged.
If the vehicle is running you should see between 13.5 volts and 14.5 volts. If the engine is off, you should have at least 11.5 volts. Voltage alone is not enough to determine the "health" of a battery. If a battery may be the cause of a problem then have it load tested by your local parts store or automotive shop.
12 volts...max 13.8 volts
20
neither...it should have 14.63 volts
Fully charged battery should have 12.6 volts. 75% charged 12.4 volts, 50% charged 12.2 volts, & 25% charged 12.0 volts.
how many mpg does a 1997 chevy blazer get?
12 volts DC.
5 quarts
5 quarts
From 13.5 to 15.5 Volts.
13.5 to 15.5 volts
i have not found a blazer or jimmy that gets over15 mpg no matter what ya do to it.