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Thread: Lead Acid Battery Chargers and their modern uses/replacements

  1. 3rd February 2025, 12:48 PM #1
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    Lead Acid Battery Chargers and their modern uses/replacements

    I have a CTEK MX5.0 battery charger that I have used for years to top up my various Disco batteries from time to time.

    From recent posts on here, and putting aside the question of Lithium (which I don't have), is this charger not really suitable for calcium (which I also don't have) and/or AGM battery charging, in particular using the recon program?
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  2. 3rd February 2025, 01:08 PM #2
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    that'll mostly charge any lead acid tech battery, it'll partially charge a lithium in a pinch

    just remember to set it to small battery for anything under about 5ah and not to use the recovery mode on AGM batteries that arent already completely dead or any lithium battery.

    its also rated for calcium according to its manual.
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  3. 3rd February 2025, 01:22 PM #3
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    Quote Originally Posted by Blknight.aus View Post
    that'll mostly charge any lead acid tech battery, it'll partially charge a lithium in a pinch

    just remember to set it to small battery for anything under about 5ah and not to use the recovery mode on AGM batteries that arent already completely dead or any lithium battery.

    its also rated for calcium according to its manual.

    Thanks Dave.

    And having finally just re-found the manual, it also can be used for "GEL and many AGM batteries". And the Cold Weather Program for "power
    AGM batteries like Optima and Odyssey".


    And as a follow up, can/are AGM batteries also covered by the "wet" category, which I always understood to be limited to the traditional lead acid versions?
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  4. 3rd February 2025, 04:02 PM #4
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    Quote Originally Posted by gavinwibrow View Post
    Thanks Dave.

    And having finally just re-found the manual, it also can be used for "GEL and many AGM batteries". And the Cold Weather Program for "power
    AGM batteries like Optima and Odyssey".


    And as a follow up, can/are AGM batteries also covered by the "wet" category, which I always understood to be limited to the traditional lead acid versions?


    AGM batteries are technically a wet battery they have most of the benefits of a traditional wet battery and some of the benefits of a gel battery. They also mix in some unique weak points however mostly if you use the battery correctly they're negligible.
    Dave

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  5. 4th February 2025, 10:26 AM #5
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    Quote Originally Posted by Blknight.aus View Post
    AGM batteries are technically a wet battery they have most of the benefits of a traditional wet battery and some of the benefits of a gel battery. They also mix in some unique weak points however mostly if you use the battery correctly they're negligible.
    I concur as I have a "Century" 9 stage battery charger and maintainer and it has 3 modes, SMF/Calcium and AGM/Flooded and Gel.
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