Laptop Bags for the construction and the principle of batteries
1, laptop batteries Category:
Media can be divided in accordance with nickel-cadmium batteries, Ni-Cd, Ni-MH Ni-MH, Lithium-ion LI-ion Li-ion and lithium ion polymer battery last, and now The IBM ThinkPad R40 laptop battery is used, the lithium-ion notebook.
2, calculated on the structure and capacity of the battery of the laptop as follows:
No matter what kind of batteries for notebook battery + charging protection circuit, the charging circuit protection is again the control chip to avoid charging the battery overheating and avoid overheating protector format. Terms of laptop batteries are 10 8v, 11 1v or 14 4V's. What is the difference between the amount of batteries in it?
Note that each battery voltage 3 6V lithium-ion 3 7v in order to obtain more than three types of voltage, you must first episode of three or four batteries, and then by n-group, the composition of this group of batteries series.
For example, the battery rated 10 8v/3600ma, may be, 6-cell or 9-pin, single-core low-power capacity of 1800mAH or 1200mAH
3, lithium-ion battery charge and discharge:
Why laptop battery protection circuit should be built-in collection? This is because the lithium batteries have a certain amount of charging voltage, General 3 6v battery should never be more than 4 2v, otherwise they may explode. This requires an external monitoring device tense situation, an approximation to the threshold of when to stop the same charges, the batteries have discharge limits for the general 3 6v battery can deliver no more than 2. 75v prevent the failure of the battery, which is what we often say "over-discharge.
4, lithium-ion battery Model:
Lithium-ion signal is presumed to be used in accordance with their size, typically in batteries for notebooks, the following models: 18650,18500,17670,17650, 103,448.103450 to 18,650, for example, batteries 18 millimeters in diameter, length 65 mm, therefore, to 18,650. 103,448 and are among the box of 103,450 batteries, IBM 240-series for the use of this type of electrical equipment HP Pavilion dv9000 Series Laptop Battery, high or wide, 10mm, 34mm, 48 mm. Overall, 18,650 or 17,670 batteries used laptop batteries, mainly because the two batteries with greater capacity, are smaller and are necessary for the cause of the shape of the battery. 5, which is to change what the batteries?
Replace the batteries in the battery, the battery off, replace the existing batteries. Manufacturers of batteries, battery replacement is strictly prohibited acts, because it has a very high risk. Replace the batteries when the battery itself, caused by a voltage soldering iron or other tool to ease short-circuit electrostatic discharge, fire, explosion. On the other hand, by charging the original battery protection circuit of written information (capacity, decay time, etc.), battery replacement is likely to fail protection circuit, which can not be imposed or even over-the result of an explosion . Thus, for the batteries is dangerous, and there is a risk, we must pay attention! ! 6, note the need to change the batteries?
Batteries is dangerous, but to save money, we must take the risk. Replace the batteries before the battery would rather 'of attention (usually around 5% can be entered) shine. This is because the new batteries, with a little more of their power, if you put a battery fully charged battery was born, charging protection circuit always remember, the battery is fully charged, even without electricity for the new batteries, circuit charge is not also be allowed, and many of the core after changing the battery charge, for this reason. Also, consider replacing the batteries, carefully, the batteries before the model, capacity, brand, and sometimes different brands of batteries in a charging circuit, blocked the path automatically, so that the errors for the core . Thus, the exchange is therefore the same type of battery brand.
In addition, changing the batteries must be replaced in its entirety, not just a part of Compaq Presario 2100 Laptop Battery, it is very dangerous, you must obtain benefits children face a significant loss.
Nor should the blind pursuit of high-performance batteries, because some of the circuit for the detection of new capabilities to the original batteries if the batteries are blocked, or allowed only to the original capacity charge, so that the next big batteries capacity is very low.