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Reaktor 3000W premature done charging Pb battery

Wayne RobeyWayne Robey Club Members Posts: 3

The manual dies not say anything about detecting charge completion when charging Pb batteries but when I try to charge and equalize, it charges at the set current till the voltage limit is reached then with reducing current for a short time then it indicates done and goes to a trickle charge. How do I keep in in the voltage and current limited mode? The Foam Cut mode has suitable voltage and current limits but when I try to use it for battery charging I get the message Connection Breakdown.

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  • Wayne RobeyWayne Robey Club Members Posts: 3

    300 not 3000 W

  • Marlan MuirMarlan Muir Club Members Posts: 1

    Greetings Wayne. I wandered in looking for something else and found this question. I don't know, but maybe I can help. I find the two main bits of info from you: the battery type you are attempting to charge, and your expectation that it charge differently than the charger's specification allows. Admittedly, I have not tried to use my Reaktor 2 x 300w to charge up a Pb battery, but your description- runs until the "voltage limit is reached then with reducing current for a short time then it indicates done and goes to a trickle charge", sounds about right for a Pb battery. Typically, lead-acid batteries don't get "equalized". (Pb is the symbol for lead). They do however, get trickle-charged after the preset voltage is reached. So your observation should be correct for lead-acid batteries.
    I only know of doing balance charging with Lithium xxx type batteries. Check again to confirm you are charging the correct type of battery. You don't want to burn the house down from charging a lithium battery on the wrong charging mode. Don't ask me how I might know that could happen ;).
    Now, on to your last question ("How do I keep in in the voltage and current limited mode?"). I haven't looked, but, my question to you would be, why would you want to keep the Pb battery on a higher rate of charge after it has reached the pre-determined setting on the charger?
    Marlan

  • Wayne RobeyWayne Robey Club Members Posts: 3

    It seems that the discussion system does notify a person that there is a reply!

    my question to you would be, why would you want to keep the Pb battery on a higher rate of charge after it has reached the pre-determined setting on the charger?

    There is nothing in the manual about conditions for terminating the charge of a Pb battery. All I want is for it to charge within the specified voltage and current limits. For a Pb battery that has been setting a while, PbSO4 builds up on both plates and pasivates them. As a result, at constant current, the voltage will rise then fall as the layer breaks down. This voltage vs current pattern also happens for neglected NiCd cells and if I use manual NiCd charge, the charger will indicate done several times when I try to charge them.

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