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How long does it take to recharge the battery?

2019-08-09

Lithium Battery Charging Time: Recharging Batteries all have a battery charging time problem. With nickel-metal hydride batteries, nickel-cadmium batteries, and lithium batteries replacing primary batteries and their popularity in new applications, it is necessary to understand the scientific battery charging time.

 

From the market point of view, most of the current chargers currently used are constant current chargers. That is, charging current is always the input current marked on the charger. Since the battery itself generates a reverse potential for charging current, therefore, According to the ratio of different battery capacity to charging current, the scientific battery charging time is as follows:

 

Battery capacity. Look at the label on the outside of the battery.

 

Charge Current. Look at the input current marked on the charger

 

1, when the charging current is less than or equal to 5 % of the battery capacity,

 

Battery charging time(hours) = battery capacity(mAh) × 1.6 <S> charging current(mA);

 

2, charging current greater than 5 %, less than or equal to 10 % of battery capacity,

 

Battery charging time(hours) = battery capacity(mAh) × 1.5 <S> charging current(mA);

 

3, when the charging current is greater than 10 %, less than or equal to 15 % of the battery capacity,

 

Battery charging time(hours) = battery capacity(mAh) × 1.3 <S> charging current(mA);

 

4, when the charging current is greater than 15 %, less than or equal to 20 % of the battery capacity,

 

Battery charging time(hours) = battery capacity(mAh) × 1.2 <S> charging current(mA);

 

5, when the charging current is greater than 20 % of the battery capacity,

 

Battery charging time(hours) = battery capacity(mAh) × 1.1 <S> charging current(mA).

 

There is also a fast charger because the fast charging uses the high current discharge to generate high heat, and in order to prevent excessive charging hazards during rapid charging, so the general fast charger is equipped with a control circuit or IC chip to control the battery charging time. When the battery is close to full, the control circuit will automatically switch to trickle-down charging mode, so there is no need to worry about overcharging and it is unnecessary to calculate the battery charging time.


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