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Thread: Deep Cycle 'Leisure' Battery Power

  1. #11
    Join Date: Oct 2012

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    I'm Alan.

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    Quote Originally Posted by Pepperamip View Post
    I've got a 1.5a smart motorcycle battery charger but I'm guessing this isn't really suitable?
    Providing it is a smart charger, as you say, it should be suitable.
    The 10% required charge rate is if you are not using a smart charger. The time to fully charge is going to be rather long but if you achieve 14.2-14.4V on the battery then you can be happy that it is fully charged.
    The 1.5A rating is going to be well over the self discharge rate so I'd say you are good to go. Keep the voltage above 12V.

    The killer for lead acid batteries is leaving them in a discharged state for long periods.

  2. #12
    Join Date: May 2016

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    Quote Originally Posted by struth View Post
    Ive got a smart ring wasnt cheap but it is a very good charger, and saved a couple of batteries. got it at Halfords in a sale
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  3. #13
    Join Date: Feb 2013

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    Quote Originally Posted by Sherwood View Post
    They sell special cushions for that now!
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  4. #14
    Join Date: May 2016

    Location: Much Wenlock

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    There is quite a difference in construction between "normal" and " deep cycle or leisure batteries".

    Normal batteries are designed to give bursts of power for short times then recharging. If not recharged relatively quickly lifespan will be compromised.

    Not true of the deep cycle whose design gives voltage over long times. To use a trickle/smart charger on this battery is not required and may reduce its design lifespan.

    So, using a deep cycle battery over a relatively long period between charges is preferable with no lifespan degradation.

    Information on preferred charge rate may be on the battery, certainly information will be available. I would avoid slow rate charging though.

    Gary
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  5. #15
    Join Date: Jul 2017

    Location: Kent

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    I'm Paul.

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    I ended up buying a 4a Suaoki however I've just noticed their 7a version which sells for around £80 normally is going for £35 on Amazon today. That's an absolute bargain and one I missed out on damn it. Link below if your on the look-out:

    https://www.amazon.co.uk/SUAOKI-Main...attery+charger



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  6. #16
    Join Date: May 2016

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    Good spot.
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  7. #17
    Join Date: Apr 2016

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    Quote Originally Posted by Stryder5 View Post
    There is quite a difference in construction between "normal" and " deep cycle or leisure batteries".

    Normal batteries are designed to give bursts of power for short times then recharging. If not recharged relatively quickly lifespan will be compromised.

    Not true of the deep cycle whose design gives voltage over long times. To use a trickle/smart charger on this battery is not required and may reduce its design lifespan.

    So, using a deep cycle battery over a relatively long period between charges is preferable with no lifespan degradation.

    Information on preferred charge rate may be on the battery, certainly information will be available. I would avoid slow rate charging though.

    Gary
    What Gary said.
    Below 12v isn't a problem for the battery but maybe is for your kit. Deep cycle is designed to be discharged without damaging it.
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  8. #18
    Join Date: Nov 2014

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    Quote Originally Posted by paulf-2007 View Post
    What Gary said.
    Below 12v isn't a problem for the battery but maybe is for your kit. Deep cycle is designed to be discharged without damaging it.
    Yep. My 130Ah AGM Deep Cycle caravan battery is regularly below 9V when I finally go get it from the caravan in storage (the tracker flattens it about every month), and a 'regular' car battery would be killed to death by that.
    But, my Optimate 3 motorcycle battery conditioner recovers, and charges it perfectly every time...

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  9. #19
    Join Date: Jul 2017

    Location: Kent

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    1st charge for my one yesterday. Left it on the whole day. It went up to almost 14v but it's been maintaining at 13.3. Thoight It would be higher than that. Maybe a setting I need to trigger?

    Sent from my SM-G930F using Tapatalk
    Current system:
    RPi + Allo Digione
    Beresford Caiman Seg & Dorado powered by 15v Linear PSU
    Transcendent Sound Mini Beast OTL
    Amptastic Mini-1
    Klipsch KG4.5 Speakers with Titanium Diagphrams and Sonicap Cap upgrade
    110aH Leisure Battery powers the Mini-1 & Digione

  10. #20
    Join Date: May 2016

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    Quote Originally Posted by Pepperamip View Post
    1st charge for my one yesterday. Left it on the whole day. It went up to almost 14v but it's been maintaining at 13.3. Thoight It would be higher than that. Maybe a setting I need to trigger?

    Sent from my SM-G930F using Tapatalk
    13.3 volts is normal, similar to car battery with alternator charging.

    Gary
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