My Little Prince https://blog.dnevnik.hr/akaniki
utorak, 28.06.2011.
How to repair a 'smart' laptop battery?
Some basic rules, you must connect the repair of a "smart" battery. If the cells are weak, cell replacement makes economic sense. While nickel-based cells are available Li-ion are not sold on the open market. Most manufacturers only offer in a sealed Dell GW240 with protection circuit. This precaution is understandable when the risk of an explosion and fire, when the cells are mounted in a careless manner. Always replace the pack with the cells of the same chemistry.
During cell replacement, the circuit has many "smart" batteries are alive with a supply voltage. Disconnect the circuit if you can only remove a fraction of a second data, important and make the circuit unusable. To ensure a changing cells, connect a secondary voltage through a 100 ohm resistor before connecting the cells. Fed secondary Remove the power circuit after the voltage needed for new cells.
The open circuit voltage of the replacement cells must be removed within 10% of each. The welding cell is the only reliable way to get reliable service. Look in limiting the heat is transferred to pay the cells during welding. Excessive heat can damage cells.
During storage, each cell has discharged to a charge state of differentiation. This is particularly important for nickel-metal hydride. To ensure proper accountability for all cells without overcharging some, conservation of newly repaired packet payload for approximately 14 hours, then a cycle of loading, unloading and loading. This cycle is also necessary to restore the fuel bar. Lithium lion Dell kd186
can have a normal charging time is approximately 3 hours. The Cadex C7000 Series feature a program that is based on priming automatically.
How to calibrate the "smart" battery
With the commitment and time, there is a tracking error between the chemical battery and the digital sensing circuit. This leads to a loss of precision of the SoC.
Optimal use of "smart" Dell xps m140 battery, if it refers to the precision fuel gauge, and then fully charge a fully discharged at a constant current. In such a case would be the tracking error of less than 1% per cycle. In real life, however, a battery for a few minutes to upload and download may vary greatly. Long storage also contributes to errors because the circuit can not accurately compensate for self discharge. Finally, the true power of the batteries out of sync with the required fuel gauge and a full charge and discharge is "relearn" or calibrate the battery.
What if yourDell Inspiron E1405 battery is not calibrated regularly? Can this type of batteries used in confidence? Most "smart" chargers obey the dictates of the chemical cells rather than electronic circuits. In this case, the battery is completely free, regardless of the setting of fuel level and function normally, but the digital display is affected. If not corrected, the fuel gauge is just a nuisance.
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