我的电瓶车是72v(6个12v串联)我想装一个手机充电模块…电压要求是12--48v我要怎么样接电 72v的电动车电瓶,有6个串联的,充一次电需要多少度?
\u6211\u7684\u7535\u52a8\u8f6672v,\u53c8\u4e32\u8054\u4e86\u4e00\u575712v\u7684\uff0c\u752872v\u7684\u667a\u80fd\u5145\u7535\u5668\u80fd\u5145\u7535\u5417\uff1f\u4e0d\u53ef\u4ee5\uff0c\u539f\u6765\u768472\u4f0f\u5145\u7535\u5668\u8f93\u51fa\u7535\u538b\u662f89\u4f0f\u5de6\u53f3\uff0c\u7535\u6c60\u7ec4\u518d\u52a0\u4e00\u575712\u4f0f\u7535\u6c60\u5c31\u662f84\u4f0f\u4e86\uff0c\u5145\u7535\u7535\u538b\u5e94\u8be5\u662f102.8\u4f0f\u624d\u53ef\u4ee5\u5145\u6ee1
1\u3001\u5404\u79cd\u6548\u7387\u5747\u4e3a100%\uff0c
2\u3001\u91c7\u7528\u6807\u51c6\u76840.1C\u65b9\u5f0f\u5145\u7535\uff0c
3\u3001\u5145\u7535\u4e4b\u524d\u7535\u74f6\u5f7b\u5e95\u653e\u7535\u3002
\u5145\u7535\u7535\u538b\u4e3a\uff1aU=72V
\u5145\u7535\u7535\u6d41\u4e3a\uff1aI=20/10=2A
\u5145\u7535\u65f6\u95f4\u4e3a\uff1at=10h
\u5145\u7535\u529f\u7387\u4e3a\uff1aP=IU=2\u00d772=144(W)\uff0c
\u603b\u8017\u7535\u4e3a\uff1aA=Pt=144\u00d710=1440(Wh)=1.44kWh=1.44\u5ea6
\u5373\uff1a\u697c\u4e3b\u6bcf\u6b21\u5145\u7535\u8017\u7535\u4e3a1.44\u5ea6\u3002
\u8003\u8651\u5230\u603b\u6548\u7387\u4e0d\u53ef\u80fd\u4e3a100%\uff0c\u5047\u8bbe\u662f85%\uff1a
1.44\u00f785%\u2248 1.69\uff08\u5ea6\uff09 \u7528\u4e0d\u4e86\u591a\u5c11\u7535\uff0c\u6bd4\u70e7\u6cb9\u6469\u6258\u5212\u7b97\u591a\u4e86\u3002\u3002\u3002
接的方法是有,但对整组电池不好
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