Ok, I was measuring my car battery voltage and got 12.48 DC volts.
This is when the car is off which is perfectly good value.
But now I want to measure current ? Is their any indirect way of getting the current for this battery because my multimeter goes up to a max of 10 Amps dial. So I don't think I could use it without blowing a fuse or injure ...etc.
Also is their anyway to find out how long the battery life is.
If I get the amp-hours how do I know how many amps it consumes in one hour.
Or maybe they measure car battery life differently then amp-hours.
I don't see much on the battery for calculations maybe it is on the bottom?
Any help would be great.
I know when I get my electric bill I can calculate the precise amount by the kilwatt-hours. So if I left a 60 watt light bulb on for 1 hour I would have
0.060 kilwatts * (whatever the price of one kilwatt-hour is)
etc.
I am just trying to find out a way to calculate car battery life.
It would make since to me that the battery would live for a very long time since it is being recharged every time the car is started. But this is not always the case. What makes the battery eventually waste away.
Is this not an almost perfect reverseable reaction when recharging it?
And is their a standard current for car batteries I don't know about or can I just create a 12 volt car battery by putting batteries in series or parrell to get the desired voltage/current?
This is when the car is off which is perfectly good value.
But now I want to measure current ? Is their any indirect way of getting the current for this battery because my multimeter goes up to a max of 10 Amps dial. So I don't think I could use it without blowing a fuse or injure ...etc.
Also is their anyway to find out how long the battery life is.
If I get the amp-hours how do I know how many amps it consumes in one hour.
Or maybe they measure car battery life differently then amp-hours.
I don't see much on the battery for calculations maybe it is on the bottom?
Any help would be great.
I know when I get my electric bill I can calculate the precise amount by the kilwatt-hours. So if I left a 60 watt light bulb on for 1 hour I would have
0.060 kilwatts * (whatever the price of one kilwatt-hour is)
etc.
I am just trying to find out a way to calculate car battery life.
It would make since to me that the battery would live for a very long time since it is being recharged every time the car is started. But this is not always the case. What makes the battery eventually waste away.
Is this not an almost perfect reverseable reaction when recharging it?
And is their a standard current for car batteries I don't know about or can I just create a 12 volt car battery by putting batteries in series or parrell to get the desired voltage/current?