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[無撚聊整] 大電流放電 - 構思中

DIY 一個大電流放電.  放落仔度玩 / 放一定最快.  但係, 唔係次次都可以玩得晒差好既電.  希望方便玩唔晒 d LiPo 電既時候, 番到屋企可以早 d 做完 Storage, 早 d 訓覺.

一般 B6 charger 只有 1A 放電.
靚靚 0730i 都只有 5A 放電.

我打算用燈泡黎放.

12v H4 燈泡 55w/60w 應該可以做到 (60W+55W)/12V=9.6A
唔知用黎放 7.4V battery pack 會去到幾多 A?  要起個 lab 度度佢至知.
一個唔夠用兩個, 兩唔唔夠用夠三個.

另外想一想點樣 cut-off.  簡單 d, 買個現成既 BeepBeep 插落去, set 6.8v 或 3.4v (單 cell) 響.  到 volt 佢響就手動停放.

最 ideal 就整到可以 check 到單 cell 3.4v 就自動 cut.  不過, 遲 d 先啦.

兄弟們, 有無其他提議?

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回復 7# raypoon

唔 balance 既話, 插去部差機做 Storage/Balance 得唔得?  平時玩車舊電都未必放得 balance.

呢個做法應該慳時間過由頭到尾係部差機度做 Storage?

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回復 5# bobby

都好喎, 個然係 "無撚撩" 大師兄... 不過, 搵咩做 loading 好呢?  空轉唔食電.

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本帖最後由 AbarthJoe 於 2011-7-13 09:59 編輯

回復 10# Simon

原來有手動控制器,full 雞都無問題。



http://tw.myblog.yahoo.com/robot ... &l=f&fid=10

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本帖最後由 AbarthJoe 於 2011-7-15 10:35 編輯

Haha, our expert show up finally, thank you

Sometimes, I get prepared for a race, charged all packs but it was cancelled finally (e.g. rainy) , since LiPo packs not likely to be stored in full charged condition (4.2v/cell), then I have to discharge them to certain level / voltage (3.8v/cell) shortly, to avoid LiPo packs failure or become balloon.

Yes, ideal case is doing charge / discharge with active cell balancing, that's the function provided by those powerful chargers.  But the discharging rate is relatively low compare to the batteries discharge ability (charger: 5A vs battery 4000mAh 40c, 160A).  That's why i want a large current discharger

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