Battery detection products to dispel doubts
To understand battery testing products, we first need to understand knowledge: first, what is the
car battery used to do? Two, what are the characteristics of the car battery? What are the effects
of these features? Third, how does our product test for these characteristics
ONE. What is the car battery used for?
We all know that cars have batteries, but maybe some people do not know why cars have
batteries, here, we briefly introduce the car battery is used for what.
The purpose of automobile battery is mainly used for automobile, motorcycle, tractor, diesel
engine, lighting, air conditioning, multimedia and so on. The automobile battery plays the role
of voltage stabilizer of the whole electric system, which can mitigate the impulse voltage in the
electric system and protect the electronic equipment on the automobile. When the car engine
stops running or at low idle speed, the battery supplies power to the car electrical equipment.
Batteries also supply electricity when demand exceeds the capacity of the generator. When the
generator is working properly, the car battery stores the excess electricity produced by the
generator.
Of these uses, the battery has the greatest impact on the car, starting. Automobile starting
principle: In order to make the engine transition from static state to working state, the crankshaft
of the engine must be rotated by external force, so that the combustible mixture is sucked (or
formed) in the cylinder and combustion expansion, the working cycle is automatically carried out.
The whole process from the time the crankshaft begins to turn under external force until the
engine starts to idle automatically is called engine starting.
There are many ways to start an engine. The motor starting of automobile engine is commonly
used as mechanical power. When the gears on the motor shaft engage with the rings of teeth
around the engine flywheel, power is transferred to the flywheel and crankshaft, causing them to
turn. The motor itself uses batteries as energy. At present, most car engines are started by
electric motors.
Car starting process is a process of high current operation. Cars need 100 to 300 AMps to start.
The following is a specific description of how much current the car needs to start: 1, gasoline
engine starting battery output current can reach 200-600 a, diesel engine starting, battery
output current can reach 1000 A. 2. The larger the displacement of the general engine, the larger
the starting current, the different engines with different starters, the starting power of the car is
usually between 1 kw and 3 kW. 3, when starting the engine, the battery will release a very large
current, so as to start the engine smoothly.
Two, what are the characteristics of the car battery?
Because of the characteristics of the battery structure, resulting in its discharge characteristics,
there are certain rules. Here we have to talk about CCA (CCA value of battery). Cold Cranking
Ampere (CCA) is the amount of current released by a battery for 30 seconds at a specified low
temperature (usually 0℉or -17.8 ℃) before the voltage drops to the limit feed voltage. For
example, a 12-volt battery case is labeled with a CCA value of 600, which means that at 0°F,
600 amperes (Ampere) can be supplied for 30 seconds before the voltage drops to 7.2 volts
The focus of CCA is to test the discharge capacity of the battery to ensure reliable and realistic
energy for the use of the starter. We can see the mark of "110Ah/450A" on many foreign starter