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  1. #1
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    Jun 2013
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    my lifepo4 battery seems to be dead

    Hello,

    I have an homemade e-bike and got a battery problem.

    When I arrived to the bike one day, I noticed that it didnt get charged during the night at all.

    I had ran out the battery during the previous day.

    I have a 1000w 36W hubmotor connected to a Vpower 36V 10A LIFEPO4 [http://vpower.hk/product.php?id=18] and a 6A charger.

    It follows with an BMS, a board for battery protection so I feel safe that I did not over-use the battery but rather that the BMS board [http://vpower.hk/product.php?id=114] can be broken.

    I saw that one cable soldered from the charger was partially burned off, and I repared that cable to no avail.

    The battery has ~33V of voltage and the charger outputs ~45V. When I plug the charger in the bike (with a normal ampere running), everything works but it does not charge the battery.

    What could the problem be? I could try to troubleshoot it with my voltmeter if needs to be.

  2. #2
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    Jun 2013
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    I have a picture of the battery and the BMS at :
    http://imgur.com/CRPZG7L
    http://imgur.com/9ru5ktW
    http://imgur.com/GPVsTOb

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