Can i use 9ah Batteries instead of 7ah Batteries in the UPS?

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  1. Posts : 4,198
    Windows 10 Pro
    Thread Starter
       #11

    Ivan the SoSo said:
    Here you go excellent quality...should last for months on a single charge Forklift Batteries - Reconditioned 6-85-11 Forklift Battery one year warranty Forklift

    Don't drop it on your foot
    hahaha i wont be dropping anything on foot Ivan.. the problem is i wont find these batts anywhere in Pakistan i guess and oh yeah 850 USD is'nt it cheap?
    Zepher said:
    Britton30 said:
    Boogiem the 9ah won't last longer nor hold a charge longer than a 7ah battery. It will have more amp hours output, say, to run more things on battery.
    Aside from paying a high price for a battery from the UPS maker, buy one with the same specs in a brand you know to be reputable for your area.
    How do you figure that? The 9ah will run longer
    Amp Hours basically gives a reference on how long a battery will run on a certain load, example, a 1amp load will run 9 hours on a 9ah battery and 7 hours on a 7ah battery. a 9 amp load will run 1 hour on the 9ah and 45 minutes or so on the 7ah.

    And the capacity of the battery won't boost up the VA rating of a UPS, that is determined by the DC to AC circuits in the UPS. All you will get is extended run time.
    Yes i heard same just like Zepher mentioning above! and if it does really extend the time so i would be more than happy...
    strollin said:
    Are the 9ah batteries the same size as the 7ah ones? If larger, they may not fit in the UPS case.

    The goal of a UPS is to keep your system running long enough after a power failure to be able to save your work and do an orderly shutdown. Seems like 8 minutes is plenty of time to do that. If you really want to be able to run for the duration of the power failure without interuption, you should look into a backup generator.
    strollin i really agree with you and your right about 8 mins that it's enough time to shutdown the PC properly but in my country the power-failure does'nt happen once in a while coz it's going on daily-basis and on scheduled time and this becomes a real big problem when im gaming coz as soon as there's power out while gaming (where the whole pc is running on peak mostly) it sucks the life of the backup time within seconds.
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  2. Posts : 2,562
    windows 10 pro 64 bit
       #12

    On a more serious note you could use a car battery instead:)
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  3. Posts : 3,371
    W10 Pro desktop, W11 laptop, W11 Pro tablet (all 64-bit)
       #13

    Ivan the SoSo said:
    On a more serious note you could use a car battery instead:)
    Golf cart batteries would do a better job, they're heavier duty.

    I'd consider a couple of 6V golf cart batteries in parallel, along with an appropriately sized inverter and a smart, 3-stage charger to maintain the batteries.
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  4. Posts : 2,562
    windows 10 pro 64 bit
       #14

    True, but I know Boogie can get car batteries:) +It's kinda hard to fake a car battery
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  5. Posts : 4,198
    Windows 10 Pro
    Thread Starter
       #15

    I can get them but my UPS does not support External Batteries and it is mentioned in the booklet that do not attach external batteries and you may damage the ups or something like that...

    i also wanna know that my UPS running 2 12v batteries @ 24v probably so can i use 6v batteries lets say 4x 6v batteries with some good ah's?
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  6. Posts : 4,161
    Windows 7 Pro-x64
       #16

    ...but in my country the power-failure doesn't happen once in a while coz it's going on daily-basis and on scheduled time...
    If the power goes out on a schedule, wouldn't it make sense to shutdown the PC when it gets close to that time instead of waiting for the PC/UPS to die?
    You can schedule a message to remind you and/or shutdown the PC with a scheduled task.
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  7. Posts : 2,562
    windows 10 pro 64 bit
       #17

    boogieboy said:
    I can get them but my UPS does not support External Batteries and it is mentioned in the booklet that do not attach external batteries and you may damage the ups or something like that...

    i also wanna know that my UPS running 2 12v batteries @ 24v probably so can i use 6v batteries lets say 4x 6v batteries with some good ah's?
    That would kinda fall under the external battery clause....but that might be what you end up doing anyway.....
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  8. Posts : 24,479
    Windows 7 Ultimate X64 SP1
       #18

    I would go with the battery type that it is supposed to be. If you could attach an external It would likely pull to much amperage from the UPS's charging system since it would be a bigger and more powerful battery.
    You could get a new UPS too.
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  9. Posts : 2,562
    windows 10 pro 64 bit
       #19

    What current does your computer run on?
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  10. Posts : 3,371
    W10 Pro desktop, W11 laptop, W11 Pro tablet (all 64-bit)
       #20

    Britton30 said:
    I would go with the battery type that it is supposed to be. If you could attach an external It would likely pull to much amperage from the UPS's charging system since it would be a bigger and more powerful battery.
    You could get a new UPS too.
    That's why I suggested golf cart batts, inverter and charger previously. Those three items together would replace his existing UPS with a much heavier duty, homemade UPS. I have a similar setup for my RV, coupled with a Honda 2000W generator I can power all my electronic goodies in the RV as long as I have gas to run the genny to recharge the batts when they get low.
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