-what are (load test amps) in car batteries?
my car battery is rated dry cell 12 volts and 20 amph and 220 load test amps.........
-according to what parameters can i calculate when will my car voltage supply decrease...........
like : (in case of the mentioned battery above) when i use how much amps will the battery weaken to provide only 10 volts instead of 12 volts and so on till full depletion.
-Is the rating of cold cranking amperes (CCA) and load test amperes in case of the battery is fully charged?
-in case of my old used car battery rated as above , i charge it once every week or something where I'm using it in a circuit, are there anything else should i say to technicians to do? like changing water of the battery etc.....Car battery questions?Go onto the web and look for 'The Battery University' this will tell you all you need to know. As for changing the acid in the battery, it will not help, Car batteries fail because the lead paste which is pressed into the lead grids which form the battery plates, loosens and falls out as the battery ages. This is what you see as the black sludge in the bottom of each cell.
