电动车为什么不做双电源

2025-03-16 06:08:01
推荐回答(3个)
回答1:

现在市场上主流的铅酸电池,普遍都很重的,拿最常见的12V20ah的电池来说吧,大约重7公斤,72V的电动车需要这样的电池6组,那么单电源的72V20ah的电动车电池重量为7*6=42公斤!也就是说如果做双电源的这种电动车,电池成本大概是650元左右,控制器成本和车辆结构成本大概增加200元的样子,也就是增加850元的样子。这好像还能接受,毕竟续航增加了一倍,但是重量呢?两组电源就是84公斤!再加上车子本上的重量, 一辆电动车得接近300斤的样子了!太笨重了,一般人想挪动一下都不可能,而且两组电源占据的空间是很大的。而市场上比较高端的电动车电源就是锂电池了,锂电池很轻,重量和空间完全没为题,但是,同样是72V20ah的,一组的价格是2500元左右,两组了就是五千多的样子了,价格太贵,加上车子本身的成本,一个电动车八九千,一般人接受不了的。

回答2:

双电源电动车自身太重,行驶时耗电增大,自身稳定性变差,刹车距离增大。对安全不利。安全行驶是重中之重。

回答3:

这是因为成本高的原因呀。

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