Note to charge other usb power pack devices

1, the ambient temperature should pay attention to: avoid the temperature is too high or too low, can refer to the work of the lithium-ion battery temperature 0-35 ° C, the temperature is too low cause the battery to job insecurity, inadequate discharge, excessiveshorten the life of electronic devices, damage batteries. 2, the voltage of the match: usb power pack supply rated output voltage of 5V, the general should be controlled in the range of 5V ± 0.1V, otherwise can not give part 5V load charge. 3, the current match: mobile power pack supply rated output current is generally divided into two cases, 1A current charge to ordinary phones and smartphones, 2A (or 2.1A) current to charge the iPad or tablet, At this point, if you use the following 2A output usb power pack will lead to dissatisfaction load charge and charging time is short, this situation is a dedicated iPad mobile power pack. The load to conduct 2A/2.1A current output is best to shut down, because the function of the complexity of the boot and sometimes may not be able to charge. 4, matching adapter: mobile power pack via a USB cable to charge the load, therefore, consistent interface connected load and load interface. 5, the quality of the cable: Be sure to select international standard wire made ??of a USB cable, otherwise, if the internal resistance of the USB cable is too large, may cause long charging time even charging failure. Charging environment should be well-ventilated place, can not be placed in the bag to charge the phone. Because the usb power pack charging will be part of the energy consumption into heat, on the bag less cooling effect, as I said before, the high temperature will have a negative impact and even lead to security incidents.