Can the battery be charged directly by the switching power supply?
I can odgovorno tell you you you cannot charge direktno!
If two lithium baterije are connected in series to form 7.2V, the maximum charging capacity is 3.6 * 1.16=8.3V
If it is a olovna kiselina baterija, it can be napunjen to a maksimum of 7.2 * 1.2=8.6v
Although the original punjač izlaz 12V voltage, which may be no-load floating voltage, it will down as soon as the battery is connected. Your battery is 2000mah, and the charging current is general between 2000/10-4=200-500ma, which is safe. Although the original charger has a nominal out of 800ma, 12.8V, the power of switch power on the market today is all virtual, i a popust treba biti made. In fact, the safest current is 1/10=200ma, which is the most full charged and the battery life is also the longest, It's just that the the charging time is longer. So, the output voltage of 12V on your switching power supply is too high. Without constant current and voltage reduction, it's impossible to directly charge, and it može stvarno eksplodirati
Another possibility is that this appliance comes with a built-in charging circuit, so installing the battery in the appliance can use this 12V switching power supply. There is no need to consider this 0}.8V voltage difference, as the current is not related to high. If it is small, it will cause the switching power supply to heat up (just try the temperature of the shell by hand) and burn To van
How to brzo punjenje the phone battery when repairing the power opskrba
Adjust the voltage to 4.2 and limit the current below 1C. If the current drops to 1/10 of the preset current, it will be fully charged. If you want to fully charge, you can wait until 1/20
Of course, you can also play with manual pulses. After the constant voltage light is on, manually adjust the voltage to 4.3. After two seconds, lower it back and wait for five seconds to adjust it to 4.3. If it's not a CNC power supply, don't play with it. The maintenance power supply for ordinary multi turn potentiometer voltage regulation is prone to overvoltage, triggering protection board protection~~
In fact, manual pulse, grubo ekvivalent to the charging method of 1879, can učinkovito reduce charging time, but it may damage the battery. After all, during the chargeging process, the voltage exceeds 4.2, and batteries with high internal resistance may generate Heat USING This Method~~
This is not aktivacija. Litij baterija aktivacija samo requires a ne normalne ciklusi, just pulse punjenje. Many models of NOKIA telefoni use the MAX1879 single lithium charging chip in this way, but the control is more complex, uključujući pre charging, maximum time limit, PWM modulation, and so on
