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常见问题

给电瓶车充电快充好还是慢充得好

作者:嘉芯业科技 来源:本站 最新更新于:2020-07-09 12:12:25 分享:

快充的充电电流大,因此充电时间会短很多;而慢充的充电电流小,因此充电时间就长。
举个例子,如果买的是镍氢充电器,上面标示有输出电流为1.5A,这个就是快充,因为目前5号镍氢电池容量多在2500mAh(2.5Ah)左右,用1.5A电流充电,大约两个多小时就充满了;如果买的充电器上面标示输出电流100mA或200mA这样的,就是慢充,同样充2500mAh的电池大概要二三十个小时,而且充满后有可能不转灯(电流太小检测不到)。
至于快充对电池的损害,理论上是存在的,因为大电流充电发热较大,对电池内的化学材料成分有加快寿命消耗的可能。但是为了节省效率,一般是可以忽略这个影响的(电池的循环一般都有300-500次,能用这么久已经很节能减排了)


在时间充裕的情况下,慢充比快充好,因为慢充就是标准电流充电,对电池的最好。而快充虽然能缩短电动车的充电时间,但是比较伤害电池,偶尔在时间不足的情况下用快充充一下是没有大的问题的,但是要是经常使用快充的话,会明显的缩短电池的使用寿命。
80v转5v2.1a芯片方案


The charging current of fast charging is large, so the charging time will be much shorter; while the charging current of slow charging is small, so the charging time is longer.
For example, if you buy a nickel-metal hydride charger with an output current of 1.5A, this is a fast charge, because the current capacity of the 5th nickel-metal hydride battery is mostly about 2500mAh (2.5Ah), and it is charged with a current of 1.5A. It takes about two hours to fully charge; if the charger you buy is marked with an output current of 100mA or 200mA, it is a slow charge. The same charge for a 2500mAh battery will take about 20 to 30 hours, and it may not turn on the light after being fully charged ( The current is too small to detect).
As for the damage of fast charging to the battery, there is theoretically, because high-current charging generates more heat, which may accelerate the life-span consumption of the chemical material components in the battery. However, in order to save efficiency, this effect can generally be ignored (the battery cycle is generally 300-500 times, and it is very energy-saving and emission-reducing that can be used for such a long time)
 
 
In the case of sufficient time, slow charging is better than fast charging, because slow charging is standard current charging, which is the best for the battery. Although fast charging can shorten the charging time of electric vehicles, it is more harmful to the battery. Occasionally, it is not a big problem to use fast charging when the time is insufficient. However, if fast charging is used frequently, the battery will be significantly shortened. Service life.