Are sold on the market in recent years that most students rechargeable lamps with the sort of, call what name I also do not go up, anyway, not expensive, I would like to ask you about the charging lamp charging commonly how long?
Charging time depends on the built-in rechargeable battery capacity and provide the size of the charging current charging circuit. General capacity/charging current multiplied by 1.2 is about the same time.
What you said is likely to be that kind of LED desk lamp, there is a difference between this kind of desk lamp rechargeable batteries, differentiate the probably only from price, twenty yuan is using a small battery, the battery is to increases with the increasing use of filling, generally charge no more than four hours, frequently and filling. Fifty yuan using nickel cadmium or nickel metal hydride batteries, such batteries is to run out of charge again, generally charge for six to eight hours. One hundred yuan with lithium battery, can be used after a period of time to filling filling, no specific requirements, such as the battery's current difference is large, large current will be longer, shorter, conversely in six hours.
Note: if charging desk lamp is newly bought, generally it has a certain power. The electricity used up inside first, and then, it will more protection to the battery.
Charging commonly 4 hours is full of, but don't always keep filling. Because the battery will be overloaded, it is easy to be bad. Go down for a long time, the battery power will not durable. Moreover, this will not guarantee the safety of the battery, to believe, for its own security or security charge.
