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adt low battery won't go away on keypad

Discussion in 'Security Alarms' started by mark, Nov 30, 2004.

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  1. mark

    mark Guest

    I have an adt safemanager 2000 / safewatch 2000 (keypad) system in my
    house. It's about 3.5 years old. Recently the power was off for a
    long time and since it's come back on the low battery "bat" message
    continually shows up in the keypad. I've checked the battery voltage
    and the fuse with a multimeter. All is great. I even tried a new
    battery (before the multimeter) and the problem persists.

    The real trouble is that every so often the keypad beeps continuously
    until some keys are pressed to stop it.

    How can I reset this low battery message on the keypad?
     
  2. Frank Olson

    Frank Olson Guest

    You probably have wireless devices on your system (door contacts, motions,
    etc.). The message you're seeing relates to these, not the common control
    battery.


    --
    Frank Olson
    http://www.yoursecuritysource.com
    Free listings for qualified dealers and industry professionals
    You can read the ASA FAQ at
    http://www.yoursecuritysource.com/asafaq.htm
     
  3. Joe

    Joe Guest

    I have had a hard time getting lo batt messages to go away on those
    types of panels too.
    I have had pretty good success making them go away by entering into
    programming and then getting right back out.

    You may try poering completely down for a few minutes, power back up and
    see what happens... Couldn't hurt.
     
  4. G. Morgan

    G. Morgan Guest

    On 30 Nov 2004 06:26:39 -0800 "mark"
    used 11 lines of text to write in newsgroup: alt.security.alarms

    try [master code] +5

    [master code] + 1 two times
     
  5. mark

    mark Guest

    Everything in the system is wired. There are no motion sensors, just
    glass break detectors apart from the normal door / window contacts.
     
  6. mark

    mark Guest

    One more bit of info which may help ... the keypads no longer light up
    when you press keys. I opened them up and they don't have batteries
    in them.
     
  7. James B

    James B Guest

    Panel takes a 16.5 Ac transformer, so the AC had better measure at least
    that but between 17 and 18 ac is normal.. :) Sounds like the battery
    needs to be replaced though.

    James

    code + off, code + off

    and measuring the battery with a multimeter will tell you nothing real.
    your panel is testing the battery under load and it is failing the test
    that's WHY you are seeing a low battery...replace the battery!

    a new battery may have to be in the system for an hour or so before it
    charges. give it time...then;

    code + off, code + off

    if it still is displaying low batt after installing a new batt and won't
    clear, measure the transformer voltage (AC) should be around 13 VAC but
    anywhere from 12-19 is common.

    if AC is ok and still have prob...it could be a number of other thangs..bad
    charging circuit on main board would be my next guess...but haven't seen
    that much in Ademco stuff.

    my money is still on battery being bad

    good luck!




    | I have an adt safemanager 2000 / safewatch 2000 (keypad) system in my
    | house. It's about 3.5 years old. Recently the power was off for a
    | long time and since it's come back on the low battery "bat" message
    | continually shows up in the keypad. I've checked the battery voltage
    | and the fuse with a multimeter. All is great. I even tried a new
    | battery (before the multimeter) and the problem persists.
    |
    | The real trouble is that every so often the keypad beeps continuously
    | until some keys are pressed to stop it.
    |
    | How can I reset this low battery message on the keypad?
    |
     
  8. mark

    mark Guest

    Ok ... it WAS the battery. I installed a new one and waited an hour
    or so and it went away.

    So if I take a multimeter and measure the voltage while the battery is
    in place what should I see? I measured it across the terminals while
    the battery was installed and it was something like 13.5
     
  9. John O

    John O Guest

    So if I take a multimeter and measure the voltage while the battery is
    That's a great procedure for *any* device that runs off a battery, except
    maybe the load requirements. Just for grins, there's a great site out there
    that explains all types of rechargeable batteries in more detail than
    anybody really needs, and it's in layman's terms. Check out www.buchmann.ca

    BTW, that surface charge problem is classic for NiCd cells that need
    rejuvenated. I use 2000 uF charged to 50 volts, and discharge it through the
    battery 5-10 times. If that--and an amp or two directly through the cell for
    good measure--doesn't fix them, nothing will. And that fixes a lot of
    supposedly-bad NiCd cells...

    -John O
     
  10. The way we test batteries is by using a ELK-BLT Mhos Meter, by ELK
    Products. It will show the voltage of the battery and then will put a
    load on the battery and give a digital readout of the result. The
    resulting number can be compared to the chart on the back of the
    meter. Its a great way to check the health of your batteries. Voltage
    alone just wont cut it.
     
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