There is no clear distinction between \"fast charge\" and \"slow charge\" of the charger, which is defined according to the charging current.
1, in general, assuming the capacity of the battery is 1C, then 0.1-0.2C rechargeable battery is called slow charge.
2, greater than 0.2C is called fast charging, greater than 0.8C is called super fast charging, less than 0.05C is trickle charging.
3. Take the 1800mAh nickel-metal hydride battery as an example, the charging current between 180mA and 360mA is slow charging
4, for the 700mAh battery, the charging current in this range is fast charging.
Extended data
Fast charge and slow charge:
For example, one No. 5 nickel-metal hydride battery has a capacity of 1200mAH, while the other has a capacity of 1600mAH. The capacity of a battery is called 1C. When charging, when the charging current is less than 0.1C, it is called trickle charging.
Trickle charging can charge the battery very fully without harming the battery life, but the time taken to charge with trickle is too long, so it is rarely used alone, but in combination with other charging methods.
When the charging current is between 0.1C-0.2C, it is called slow charging. Charging current greater than 0.2C, less than 0.8C is fast charging. When the charging current is greater than 0.8C, it is called ultra-high-speed charging.
However, 1C is a logical concept rather than absolute value, so the fast and slow charge according to 1C is also a relative value, just as the 200mAH charging current is slow charge for the 1200mAH battery, and it is fast charge for the 700mAH battery.