Charging knowledge
Charging is an important step in using rechargeable batteries. Appropriate and reasonable charging is very beneficial to prolonging battery life, while wild and random charging will have a great impact on battery life. Lithium batteries are basically packaged separately according to each product and are not interchangeable. Therefore, each product also provides its own charging equipment, which is not interchangeable. When using, just follow their respective instructions. Therefore, this article mainly introduces battery charging to nickel-cadmium batteries and nickel-metal hydride batteries. There are two ways to charge nickel-cadmium batteries and nickel-metal hydride batteries, which are the "fast charging" and "slow charging" that we all know. Fast charging and slow charging are important concepts of charging. Only by understanding fast charging and slow charging can we correctly master charging.
First of all, fast charging and slow charging are relative concepts. Someone once asked, if the charging current of the charger is 200mA, is it fast charging? This answer is not absolute. It should be answered that for some batteries, it is fast charging, and for some batteries, it is just slow charging. So how do we judge fast charging or slow charging?
For example, the capacity of one No. 5 NiMH battery is 1200mAH, while the capacity of another is 1600mAH. The capacity of one battery is called 1C, which shows that 1C is just a logical concept. The same 1C is not equal. When charging, when the charging current is less than 0.1C, it is called trickle charging. As the name suggests, it means that the current is very small. Generally speaking, trickle charging can charge the battery fully without damaging the battery life, but the time spent on trickle charging is too long, so it is rarely used alone, but combined with other charging methods.
When the charging current is between 0.1C-0.2C, it is called slow charging. When the charging current is greater than 0.2C and less than 0.8C, it is fast charging. When the charging current is greater than 0.8C, it is called ultra-high-speed charging.
Because 1C is a logical concept rather than an absolute value, the fast and slow charging converted according to 1C is also a relative value. The 200mA charging current mentioned in the previous example is slow charging for a 1200mAH battery, but fast charging for a 700mAH battery.
For any questions about power adapters and chargers, you can always consult BID’s sales staff. We believe that as a mature power adapter and charger manufacturer, BID will be able to provide you with professional solutions. Welcome email us via [email protected]