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Forum Index : Other Stuff : battery rejuvenator solution

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zeitfest
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Joined: 31/07/2019
Location: Australia
Posts: 549

Posted: 12:12am 05 Jan 2022

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There is a "battery rejuvenator" liquid sold at the outlets, it is a small bottle with (I think) a solution of cadmium (nitrate?).
Anyone tried or used it ? Maybe it helps reactivate sulphated plates ??

phil99

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Joined: 11/02/2018
Location: Australia
Posts: 2417

Posted: 03:23am 05 Jan 2022

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Unless this is a new type of rejuvenator backed up by impartial testing be cautious.
Long ago the place I worked at, having lots of battery backup systems tested the ones available then and found they all shortened the life of the batteries. Lead acid batteries are topped up with distilled water for a reason. Foreign chemicals can interfere with the reversibility of the plate reactions.
What the additives can do is disrupt the hard sulphate crust that can form on the plates. This crust raises the internal resistance, chemically removing it restores cranking capacity at the expense of declining AH capacity. Cycling the battery a number of times at a rate specified by the manufacturer, though not perfect may be better.
Edited 2022-01-05 15:26 by phil99

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