Car Battery Tester XT-012 LC Motors battery Tester JL-912
Car battery maintenance is a year round requirement, because it is very frustrating to find in a morning that your car suddenly can't start because of the dead car battery. It happens usually in the coldest days. Testing a battery is fairly simple with a selected car battery tester.
IMPORTANT SAFETY NOTE: Keep any open flames away from the automotive battery as it produces hydrogen gas that is extremely flammable. Automobile batteries are full of sulfuric acid that can burn your hands. Short-circuiting car battery terminals produces electric arc hot enough to melt steel.
Open circuit car battery voltage
The first car battery test is measuring open circuit car battery voltage to determine state of charge of your lead acid battery - how fully it is currently charged. Open circuit voltage is measured 12 hours after stopping your car (to allow surface charge to dissipate and enable a more accurate reading) with the engine not running. You can use a dedicated automotive battery tester or a multimeter/voltmeter. With the dedicated auto battery tester you connect terminals to the car battery, press the test button and see the measured car battery voltage. With the multimeter you configure it to measure direct voltage up to 20V, connect the red lead to positive battery terminal, black lead to negative and read the measurement from the screen. It is not necessary to disconnect the battery from the car first.
For standard (Sb/Sb) or low maintenance (Sb/Ca) 12V car battery:
| Open circuit car battery voltage | State of charge |
| 12.65V | 100% (fully charged) |
| 12.45V | 75% |
| 12.24V | 50% |
| 12.06V | 25% |
| 11.89V | 0% (dead car battery) |
For maintenance free (Ca/Ca) or VRLA (AGM or Gel Cell) 12V car battery:
| Open circuit car battery voltage | State of charge |
| 12.77V | 100% (fully charged) |
| 12.54V | 75% |
| 12.29V | 50% |
| 11.99V | 25% |
| 11.75V | 0% (dead car battery) |
LC Motors battery Tester XT-012 JL-912
With the precision of the AC signal, Transport with sonar reflection, Analysis battery indicators of results
Function parameters and features
Rated power consumption: DC 12V
Dimensions: 250*215*70mm 520g
Display: single color 2.4 inch LCD
Measuring range: internal resistance of DC measuring voltage, CCA, 9V~DC 18V
Areas of application:
LC battery Tester professional test battery, starter system, charging system performance and life situation. Detection and analysis of simple, safe and fast.
Performance and capacity load testing
Performance load testing is used to measure battery's ability to produce current. Capacity load testing is for determining the reserve capacity or amp hour capacity of a battery. (Note, that state of charge alone doesn't say anything about the battery storage capacity.) The primarily purpose of a car battery is to start an engine, so the battery's performance (or ability to produce high current) is an important test. In the load test you measure car battery voltage under load similar to what happens when starting the car. Before performing this test make sure that the state of charge of your battery is greater than 75%. In the test apply a load equal to one half of the cold cranking amperes (CCA) rating of the battery for 15 seconds. During the load test, the voltage reading from car battery terminals should not go lower than 9.6V for ambient temperature 70°F (21°C). At 30°F (-1°C) the voltage can go no lower than 9.1V.
Located in Shenzhen, Refine Technology Limited is a professional supplier and solution provider for electrical equipment and manufacturing machinery.
Up to now, we have established strategic partnership with power utilities, state-owned enterprises, reputed companies in North America, Europe, Asia, Africa, South America, etc.
In the past years, our quality products and complete solution has been exported to many countries worldwide, such as whole-process solution on tendering, turnkey project to set up a new concrete pole factory, one-stop electrical equipment procurement/delivery/after sales services, etc.
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