Palm m125 recharge batteries: a critical question

Discussion in 'm100 series' started by zemir, Feb 9, 2011.

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  1. zemir

    zemir Mobile Enthusiast

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    Hi, i have an old palm m125 and i am happy to use it as ebooks reader. I use on it rechargable ni-mh batteries and they work very fine. However i must to recharge often and i should to know if there is an ac adapter to use with the usb cradle that have a plug connector. I have used an universal adapter setted with 4.5Volt and 0,35mAh, but it does not work.:(
    Must i set the polarity, too? The central pin is positive or negative?
    .................where can i buy an correct adapter?
     
  2. RickAgresta

    RickAgresta Above: Peanut, leader of the Peanutty Forces

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    while the cradle/cable supports connecting an AC adapter, I do not see that the m125 has a charging port; therefore, I do not think it supports charging batteries that are installed in the m125 -- the manual
    Palm Support : Resources for retired products and non-Palm products

    talks exclusively about alkaline batteries, which are not rechargeable. I don't know how old your AAA batteries are, but maybe replacing them with a new set would help.

    to answer your AC adapter question though, for my m130, the center is positive, it is rated at 5.0 volts and 1 amp (1000milliamps)
     
  3. lelisa13p

    lelisa13p Your Super Moderator Super Moderator

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    Sideways for the topic, RA, did you replace the battery in your m130? Mine is pooped out & lives on the cradle. :(
     
  4. RickAgresta

    RickAgresta Above: Peanut, leader of the Peanutty Forces

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    no, but with the digitizer so completely fubared, makes no difference. plus, if IIRC, the power button is also an "issue". I will probably do some surgery on my TX, though (especially if the preliminary numbers are right, for my income tax refund)
     
  5. zemir

    zemir Mobile Enthusiast

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    OK Rick, thanks for you answer. Therefore, what i see on ebay, it should not be true:
    the palm m125 works with 2 AAA batteries (rechargable or no) but it is not possible to recharge them on the cradle. If you make an around on ebay, you can see selling of ac adapter for palm m125. But: do they work?
    If anyone can tell me about, anyone that have an palm m125 such as me........
     
  6. RickAgresta

    RickAgresta Above: Peanut, leader of the Peanutty Forces

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    the adapter sold works, but not for the m125, as far as I can see. I looked thru the m1xx forum, and found that while the m125 did come from the factory with a cradle, and the cable to connect to a PC, it *did*not* include an AC adapter, since it uses replaceable batteries. I saw numerous ebay ads, as you said, but regardless, to the best of my research, the m125 does not accept power in through it's universal connector.
     
  7. BAB2000

    BAB2000 An "Olde Moderator" #2 Super Moderator

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    Rick is correct, the m125 does not have the circuitry to support a rechargeable.

    ni-mh batteries have a short life cycle, and as recharged the ability to support working levels diminishes over time making them less green in some applications than the alkline batteries as well as more costly.

    I would suggest looking for LiIon AAA cells, I not certain if made, I know the AA versions hold up very well and have a great shelve life, at least the set for a point n shoot camera I have, have.
     
  8. zemir

    zemir Mobile Enthusiast

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    Ok, thanks, but i see that most ebay users say it works and they leave positive feedback. I think they are not all crazy..........I do not know........ Palm suggest only alcaline aaa batteries to use on palm m125 but they sold it with the cradle and usb/ac adapter ports. I'm confuse........... there are also ac adapter that connected directly on pda without cradle, as well as secondary batteries li/ion on the same port...... However, i will use simple batteries, i will see to find any li/ion aaa types........
    Thanks again!
     
  9. reb1

    reb1 Mobile Deity

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    Tenergy and Sanyo make 1000mAH AAA batteries that have a good life cycle. They are inexpensive when ordered over the web and superior to alkaline batteries. I get longer run times with them than I did with alkaline batteries. You can purchase the batteries for around a buck apiece. Make sure you use a decent charger. Stay away from department store brands they are of poor quality and do not even have the rated mAH rating that they claim. The lithium AAA batteries do have a better run time but cost about $10. a set.
     
  10. zemir

    zemir Mobile Enthusiast

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    I have made an quick researching on ebay and i have found any aaa li / ion batteries but at 3,7 Volt each, therefore i think they do not good for palm m125. Now i am using UNIROSS 900Mah 1,2Volt, and they works fine for almost one week.
    However, i will try to use Tenergy and Sanyo, as you say, and i will inform you.
     
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