Battery detection of errors

From the user’s point of view, the purpose of battery testing is to determine the battery state of health (SOH) and state of charge (SOC), the former is not required in order to determine the need for batteries, which are required in order to determine the battery does not require additional charge. I think this is the core test battery to maintain. The industry at home and abroad more than a decade, has been trying to find a suitable users in the engineering environment, rather than the laboratory, the operation detection method. Now, North America, Europe, South Asian countries (other than China) are commonly used to test resistance at the core of the maintenance of testing methods.

Here are our six years of testing experience:

1,? Correct understanding of the internal resistance of the standard value.

Of a brand, a type of ThinkPad T40 battery , it is definitely the initial resistance, you can use the battery tester to detect the initial state within the resistance, and then use a self-adhesive label attached to the battery. COMPASS Germany’s battery status tester in accordance with the battery life, state of charge and test the temperature, within this initial resistance to the amendment before it can be used for comparison. When the resistance test value is higher than the initial value of 40%, it can be concluded batteries will soon have perished or deteriorated. In fact, the deterioration of the internal resistance of the battery far more than 40%, usually more than twice. We are in Guangdong and Guangxi Power Grid Corporation of the company’s test results in order to fully prove this point.

2, the correct understanding of the inherent capacity to maintain capacity and charging status.

The inherent capacity of the battery energy can be stored in the maximum limit. Latitude D600 battery  capacity is maintained under the present conditions can provide energy value. ? Battery state of charge is the actual acceptance of energy at present how small. The inherent capacity decreased due to rechargeable battery can lead to, retain the capacity reduction. Maintain the capacity that we actually really care about values. Retain the capacity assessment is a very complicated matter, to retain the capacity is really just a vague concept, because everyone is talking about to maintain capacity, generally not to mention a certain discharge rate and temperature to maintain a certain capacity, but under different discharge rates and a certain temperature to maintain the capacity is different, but there is no relationship, we can rely on the terminal voltage to determine a rough charge state, and then the changes in the inherent capacity to calculate the normal temperature of the Latitude C640 battery to maintain the capacity. Substation and communications base station close to the ambient temperature 25 °, usually again in floating state, the charge state of the assessed value close to 100%. Note. Here I am talking about the beginning of voltage, not an online measured float voltage.
Some friends bought a resistance instrument or battery condition tester, but did not play its role in resistance instrument lying on the Treasury of sleep for the following reasons:
1,? Instrument itself is not good to use. Testing the consistency of the equipment bought is not good, drift is too large. Some resistance device, on the same cell, the test point of contact is different from the measured resistance can vary more than doubled within the first test value and tenth test may also be a difference of twice the value of such instruments can not be used to to determine Inspiron 6000 battery state of health.
2,? The methods used wrong. In determining when the use of instruments manufacturer recommended standard value, the better to judge the battery into a bad battery, bad battery into the battery to determine as well. In fact there is no standard battery of gratitude within the resistance, the same capacity within the same type of battery resistance is different, we have many domestic experts, spent a lot of time has proven this conclusion, and our resistance does not depend on the standard instrument value to determine the battery’s state of health, IEEE1188-2005 standard is also said that the initial value of internal resistance of batteries. It should be revised, we really just put it inside the resistance of the equivalent of only one judge.
3,? With resistance instead of discharging instrument instrument to maintain the capacity to judge and found that the results differ significantly. Earlier, I mentioned that to maintain the capacity is not equal to the charge state, retention capacity, charge status and the internal resistance is equal to the product of the rate of change, a lot of resistance tester is given the capacity of value is inherent in capacity, while the discharge instrument check is to retain the capacity So is there a difference. Assuming that 100% of battery charge state, is tantamount to retain the inherent capacity of the capacity. Because of space limitations, I can not begin describe this problem, we state the smart battery tester, a calculation of the capacity to maintain function, we have thousands of miles battery factory has been verified the reliability of the test. But not all have this feature resistance instrument, select from time to time question more clearly.
With the resistance testing methods, is currently the only viable method of detecting battery maintenance. Resistance test resistance meter operation is simple, with the multimeter is almost, but the mechanism behind the test is very complex, different types of Inspiron 9400 battery indicators to evaluate different tests are not the same as the amount of the display. Time, not the same as secondary batteries, standby power supply and start the power supply batteries are not the same, deep discharge batteries and more shallow-discharge batteries are not the same as the purchase be sure to select the right equipment for you to use the other to add some theoretical knowledge, understanding of the use of battery characteristics, so as to ensure that your battery has been maintained in good technical condition.