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來源: beHappyLOL 於 2011-01-02 18:32:40 [檔案] [舊帖] [給我悄悄話] 本文已被閱讀：次 (4841 bytes)

回答: 回複：Use a float charger like this. 由 weiyi 於 2011-01-02 16:09:28

> 我的電池好象沒有到過14.4V, 哪怕是在另一輛沒毛病的車, 開過以後, 馬上測也不到14V.

That's perfectly normal. Have you tried to measure the battery voltage when the engine is runing(idle)? The reading should be around 14.4v with good alternator. If it's much lower than that, the alternator is bad.

> 我剛剛做了檢查:

1) 換了一個好的電池用上去, 一會就從13.35 跌到13.15.

2) 對電池Jump 一下, run 了十分鍾, 測一下是13.30, 過了大約1分鍾, 就跌到12.90.幾乎不能發動. 再等一會, 還會跌.

The normal battery voltage(fully charged) is about 12.5v~12.6v, measured without engine running. Right after you turn off the engine, you could get reading like 13v, which doesn't truely represent its charging state. You need to wait an hour to take measurement.

Do you have a battery charger? If not it's probably worthwhile to buy a battery charger for your older car. Running the engine for 10 minutes is probably not sufficient to charge the battery.

> 看起來很象是漏電或者您說的alternator而不是電池本身的問題．

If it's not alternator or battery problem, 漏電 is another possibility.