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Shelf Life of Unused RS 1500LCD

Discussion in Back-UPS & Surge Protectors started by Kyle , 11/22/2010 7:51 PM
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  • Globalksp
    Kyle
    New Member
    New Member
    Kyle 11/22/2010 7:51 PM

    I just purchased 2 APC BackUPS RS units (a 1300LCD and a 1500LCD). One order was in error so I need to sell one of the two.

    The 1300 was manufactured in 5/2010 the 1500 in 10/2008.

    I'd rather keep the 1500 but the 2 years of sitting on the shelf concerns me. Have there been any improvements in those two years in any other aspect of the units that I should take into consideration?

    Thanks.

  • clarkson
    Rob
    =S= Representative
    Rob 11/22/2010 9:07 PM (in response to Kyle)

    The only thing worth mentioning is the battery. If it was manufactured two years ago and just now being put to use the the battery is likely shot. Unless you bought this from APC, it probably was not recharged on a regular basis.

  • Globalksp
    Kyle
    New Member
    New Member
    Kyle 11/22/2010 11:27 PM (in response to Rob)

    This wasn't purchased from APC but the box was unopened. So it sat on a shelf someplace for 2 years, the battery never having been hooked up to the unit. I spoke with APC and couldn't get a really straight answer out of them.

    I've decided to keep the larger of the two with the reasoning that if the battery does go (it's not shot at the moment) the price I paid plus the cost of a new battery is still $100 less than retail.

    Thanks for the reply.

  • rau
    Rauser
    Apprentice
    Apprentice
    Rauser 11/23/2010 12:14 AM (in response to Kyle)

    Batteries are like food, the expire even not being used, specially lead acid batteries. When they reach a specific charge level, when the charge gets too low, they start to degrade very fast, something called sulfation starts to happen inside the battery, it is a chemical reaction and once it starts happening, you can't stop it and the battery is dead. All batteries has an auto discharging level, so even if it is disconnected the charge level goes down little by little until there's no charge and if this condition is kept for too long, the battery can reach a point where it is unrecoverable. Lead acid batteries should be reacharges once every 6 months if kept in hot wherehouse or once a year if it is kept in a cool enviroment, not freezing, but something around 15 degrees C.

  • Globalksp
    Kyle
    New Member
    New Member
    Kyle 11/23/2010 2:44 AM (in response to Rauser)

    So I should plan on buying a new battery sometime soon then, yes?

  • clarkson
    Rob
    =S= Representative
    Rob 11/23/2010 1:00 PM (in response to Kyle)

    Yes, you may want to replace it proactively. If a battery that age is suddenly put to use it could experience a thermal runaway condition, swell up, vent a nasty sulfer smell, and possibly leak acid.

  • Globalksp
    Kyle
    New Member
    New Member
    Kyle 11/23/2010 1:41 PM (in response to Rob)

    Which begs the question....

    Is there no one running Back-UPS with a battery greater than 2 years old that may have sat for some time?

    We shall see....

    Thanks for all the insights.

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