DIY Battery Backup

Discussion in 'Anything DIY Related' started by Express Reef, 1 May 2015.

  1. Express Reef

    Express Reef

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    Need some help from all the electrical dudes. I'm thinking of getting one of these to build a battery backup:
    [ame="http://www.ebay.com/itm/Brand-New-24V-2-5A-60W-Switching-Power-Supply-with-Backup-Battery-Charger-U30-/191569409336?pt=LH_DefaultDomain_0&hash=item2c9a6d3538"]Brand New 24V 2 5A 60W Switching Power Supply with Backup Battery Charger U30 | eBay [/ame]

    My Question is:
    The output is 24v 2.5A that is what is required for my DC return pump, however I see the vortech pumps power supply mention 24v 1.5A.

    How can one reduce the AMP output with 1amp for the vortech pump?

    My idea is to run my DC return pump, one mp40 and one mp10 from this with 3 - 4 battery's is parallel.
     
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  3. Express Reef

    Express Reef Thread Starter

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    Power supply Outputs:
    Jebao DC Pump AC/DC adapter output 24V 2.5A
    Vortech output 24V 1.5A
     
  4. mariusmeyer

    mariusmeyer

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    You dont have to reduce the amps. The vortech will take what it needs amp wise. The power supply is capable of giving 2,5 amps if the draw is there but it will only deliver what is required by the equipment.
     
  5. Express Reef

    Express Reef Thread Starter

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    Oky cool so I can use it as is. Thanks
     
  6. Arries

    Arries

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    Just a note..The PSU takes 2 12vdc 7ah batteries normally..if you add more then you might overload the charging circuit causing premature failure..:thumbup:
     
  7. mariusmeyer

    mariusmeyer

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    If you want to run all of it off of 1 power supply then it will be too small. Your return will take up all that the power supply can deliver so there is nothing left for the vortechs. If you want it all on 1 supply then you need to look for a power supply that can deliver 5 amps. I am also not sure if the battery charger that is built in will be strong enough to charge the deep cycle batteries in a reasonable amount if time. It might take a day or longer depending on how many batteries you have connected and the charge current of the charger. Another issue with 24v is that you have to add batteries in multiples of 2 which is a little expensive.
     
    Last edited: 1 May 2015
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