搜索 - 科创

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电压不用太高。可以理解成发热的不是电压。而是电流。而电池都会有电阻。电动势一定。通路电压就取决于电流和内阻了。电流越大。电压就越低。U=E-Ir（E电动势 I电流 r内阻）那么内阻越大的话。

有点难度电焊机的焊接电压大多为28V 基本电流120A 小些的焊条也要100左右电流在无视损耗的状态下也要3KW的功率ZVS要是用48V供电的话亚历山大啊..............空载电压要70V

可以选择低kv高电压，效率比同尺寸电机高kv低电压的效率要好，而且加电压的效率比加容量的来的实在，因为电压高KV低的情况下电流更低，效率高不少可以参考一些植保无人机\巡查无人机，你会发现电池容量也就20

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