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RC Slope Soaring in Hong Kong • View topic - 12V car battery for model charging: is 30-40Ah sufficient?

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PostPosted: Thu Feb 26, 2004 9:46 pm 
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Joined: Thu Feb 26, 2004 9:23 pm
Posts: 93
我架車用的,是66A。從前用 60A 時,若用來差 1700mAh 電池,經常充完電後,仍可撻車,但回家後數星期內,個 12V 電池就壞、要更換。

現在想買個12v電池,專供電機用,30A 左右,請問夠不夠玩全日?假設最多用來充 9 cell,500mAh。


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PostPosted: Thu Feb 26, 2004 10:04 pm 
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Joined: Thu Feb 26, 2004 7:54 pm
Posts: 1660
Location: Tai Po, HK


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PostPosted: Thu Feb 26, 2004 10:22 pm 
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Joined: Thu Feb 26, 2004 5:31 pm
Posts: 741
Location: 沙田


Last edited by Y C Lui on Thu Feb 26, 2004 10:29 pm, edited 2 times in total.

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PostPosted: Thu Feb 26, 2004 10:25 pm 


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PostPosted: Thu Feb 26, 2004 10:43 pm 
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Joined: Thu Feb 26, 2004 9:23 pm
Posts: 93
YC,肯定不關架車的 alternator 的事,因為事發在撞車前。況且 alternator 假如有事的話,現在的 66A 電池(比廠方建議的 60A 還要大),個 alternator 應該無法替其充分充電,咁個電池應一早就壞,但它是由2001年12月用到現在。

我講漏了,是 24 cell, 1700mAh,用來玩電船。我用你的方程式計過,即使是 60A,都係差 7.5 次。我當時最多差兩次。可能 3.4A 電流扯 30 分鐘(還要兩次),太勁了。


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