Wednesday 26 October 2011

WHEN I START CAR BATTERY VOLTAGES IS NORMAL AND GO A BLOCK AND SHUT OFF CAR WILL RESTART?

BUICK LE'SABER CUSTOM 03 NEVER CHANGED BATTERYWHEN I START CAR BATTERY VOLTAGES IS NORMAL AND GO A BLOCK AND SHUT OFF CAR WILL RESTART?volts is only part of what comes from the battery. the fact that it has almost 12.6 volts should be a good sign. however, what we need to start a car is cranking power or cold cranking amps. if that battery is from the factory, it is at least time to have it tested. the factory batteries are very good, no doubt on that one, but they only last 5-7 years. since you are close to that, get it checked out. on some of the gms they are in a fun place.
WHEN I START CAR BATTERY VOLTAGES IS NORMAL AND GO A BLOCK AND SHUT OFF CAR WILL RESTART?
hi deacon,

Taking you to Battery class 101

Class the battery in the modern car isnt that different from the battery in the early cars. the sizes have changed to accomodate space issues and the voltage has changed from 6 volts to 12.

all batterys have as we all know a plus or posative and a minus or negative post. some are larger post type as used in all earlier cars and some use stud or screw in connecters. both serving the same purpose.

inside the battery there pockets or chanbers. each chanber creates its portion of the CCA design of the battery. CCA being the %26quot;cold cranking amps%26quot; depending on the manufactures specifications CCA numbers can be from 500 to 1200 cca.

here is where we must recognise the difference. cca's are what are needed critically to start an engine. the engine needs a big chunk of them just to get all 4 to 8 and more cylinders to spin in the best of conditions.

with age the chambers od the battery or cells start to look a bit like the hull of an old ship wreck. rusted debrit dropping to the floor and forming a bridge between the cells. once sucsessfully bridged accross the cell shorts out because every other cell is the same polarity meaning posative is next to negative is next to posative etc. each shorted cell kills off cca,s though theoretically the battery could charge up and show a 12 volt surface charge it may only have achieved 300 CCA,a of power to use.

also the damaged cells will drop off quickly the 12 volts that the good ones held.

Now a question?

can you charge the battery with one cable of the jumpers removed ? (no points for a yes answer here)

to achieve power elecricity requires a posative AND a negative. your alternator represents that battery changer! if only one cablw wont recharge the battery using the home charger than only one wont on the alternator. the alternator may be being fooled by restrictions of power flow through tired cables and ends , dirt rust and corrotion into stopping the flow to the battery to replenish its use after starting.

tommorows lesson, how pennys remove battery acid
WHEN I START CAR BATTERY VOLTAGES IS NORMAL AND GO A BLOCK AND SHUT OFF CAR WILL RESTART?
Need a little more info. I don't see a question in there.



Car batteries will normally last 4 to 5 years if the charging system is in good shape. Yours is around 6, so you should expect it to fail before too much longer



Hope this answered it for you
If you've never changed the battery on a car that is almost 7 years old, perhaps now is a good time. Or, you could take it to autozone, and they'll tell you if it's your battery or something else.
what? do you mean the car wont re start? is it like the battery is dead? if the volts are fine then the battery is bad and you need a new one.