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Question about cordless phone battery

Discussion in 'Electronic Repair' started by Daave, Apr 18, 2007.

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  1. Daave

    Daave Guest

    I have a Northwestern Bell 36007 cordless phone. The battery conks out
    much sooner than it used to, so I assume it's time to purchase a
    replacement battery. The problem is the three stores I have been to so
    far apparently don't recognize this model (at least in the compatibility

    For what it's worth, it uses an NICD 3.6 V rechargeable battery, 450
    mAh. As far as type/size/plug, I have found similar batteries in these
    stores, but none with the same milliAmperehour value (450).

    Does this matter? Isn't this value merely how long the battery will keep
    a charge? Is it safe to go with a 3.6 NICD battery that is 1,000 mAh?

  2. James Sweet

    James Sweet Guest

    Sure, it may take a bit longer to reach a full charge, but you'll get
    better life than you ever got when the phone was new. The slower charge
    will be easier on the battery as well. You can splice on the old plug if
    you can't find one that matches too.
  3. UCLAN

    UCLAN Guest

    Your battery is available directly through Northwestern Bell. Go to: Just $5!

    [And no, using a slightly higher mAh NiCD shouldn't cause problems as
    long as the voltage is the same, unless the internal charger objects
    for some reason.]
  4. Try the Shack. They may be able to special order it.
  5. Arfa Daily

    Arfa Daily Guest

    On most cordless phones, the internal 'charger' on NiCd powered handsets,
    only comprises a series resistor that limits the charge current to a trickle
    anyway, and when I used to repair a lot of them before they became full of
    uP's all whispering to one another, I regularly used to 'upgrade' the
    battery capacity for customers, so I agree with the rest - just go for it.

  6. Guest

    Also, clean the contacts on base and handset (contact cleaner of
  7. Justin West

    Justin West Guest

    The only issue you may encounter is with the handsets battery monitor
    (if in fact you have one). I've done the same with my Siemens
    cordless phone and find it reports that it's always half full. On the
    flipside, it can now last approximately a week or 2 without charging,
    instead of a day as before. :)
  8. Zephyr

    Zephyr Guest

    the more mAh the battery, the longer it will last,
    get the bigger battery and be happy!
  9. Brian O

    Brian O Guest

    Plus $6.85 shipping!! I can buy this same battery at Walgreen's Drug Store
    for $9.99. Although, I can buy a brand new phone WITH a battery for $15!!
  10. A caveat with the 1AH battery - will if fit? It's likely be physically
    larger than the 450mAh unit.
  11. M Q

    M Q Guest

    Daave wrote:

    It is probably just the same battery, but with upgraded marketing.
    The mAh claims on battery are somewhat dubious.
  12. It is probably just the same battery, but with upgraded marketing.
    With digi-cam AA batteries, I find that the mA labels are pretty true. There
    are always web site blogs and camera-buff magazines doing battery-life
    comparisons and reporting which brand is giving more flashes than another.
    This, I think, helps keep the manufacturers' claims "honest".
  13. UCLAN

    UCLAN Guest

    Nah, a #2 type pencil eraser does the job, fine.
  14. UCLAN

    UCLAN Guest

    Plus tax, plus wear-and-tear on your car, plus your time, plus the
    cost to repair the parking lot incurred door-ding caused by little
    Jimmy getting out of his parent's Lexus.

    $11.85 delivered to your door seems like a bargain in comparison.
  15. James Sweet

    James Sweet Guest

    Not if you're already going to the store or need other items from the
    same place, which most people do on a regular basis.

    Personally I'd rather get off my ass, get out and have a little human
    interaction once in a while than pay more for postage than the item
    costs. If a substantial savings of time or money can be realized by
    ordering online I will and often do, but for something like a battery
    it's easier to just go to the store.
  16. Daave

    Daave Guest

    Thanks to all for the feedback. I think I'll go with this one:
  17. UCLAN

    UCLAN Guest

    You somewhat contradict yourself here. At first you state that you'd
    go to the store when you need other items, too. But you end by saying
    that just for a battery, it's easier to go to the store. That makes
    it sound as if you decided you needed the battery, and jumped in the
    car to go get it.

    If it's something I need *now*, I'll pay for the gas, pay for the car
    wear, pay the 8% sales tax, and get the item *now*. If it's something
    I don't need immediately, I'll let UPS deal with the traffic (I live
    in Southern California.) My time is more important to me.

    As for "human interaction", I can think of countless better ways than
    grabbing a battery at Walgreens.
  18. NRen2k5

    NRen2k5 Guest

    Ah, a pessimist. :|
  19. Guest

    Yah,an eraser will also remove plating (used on many) and won't afford
    any corrosion protection.
  20. UCLAN

    UCLAN Guest

    No, a realist. All except the door-ding is certain. And even the
    door-ding has a high probability of occurrence.
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