There Is A Possibility To Increase The Battery Capacity By Up To 40%

Discussion in 'Palm' started by wolfRx, Jun 30, 2004.

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  1. genoahous

    genoahous Mobile Consultant

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    Make certain it's a two layer board, or you'll also have to worry about internal layers. A strong light behind circuit board should help in both cases to see how much can be filed down.

    Also I like using one of those desk mount magnifier lamps when working on delicate circuit boards...you know the lamps with the circular florescent bulb with the magnifying lens in the center.

    I'd go with (NON-power) hand tools myself. Power tools would be too hard to handle (IMHO). Dremel might jump and break component or trace on PCB, and belt sander is just too strong (again IMHO).

    If you want to try the power tools, may I suggest you go to your junk box and find an old (broken) circuit board to play with first.

    Have you worked with or designed PCBs (like I have)? Experience always helps.
     
  2. klw

    klw Guest

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    @genoahaus:

    I concur completely with your suggested methodology. I will, in fact, be using my lit magnifier to check for traces inside the circuit board. I have no doubt that it is a multi-layer board and I will need to shine a powerful light behind it to check for those traces that may be within the substrate.

    If I've got 2mm then hand tools will be the call. I have a tiny bullet plane that may work best.

    Don't expect to hear about this experience until I find a battery whose dimensions and capacity would warrant the exploration though. So far, I haven't come up with one. The T5 battery may work but I won't know for sure until they become commercially available on PDAParts.
     
  3. wolfRx

    wolfRx Mobile Evangelist

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    Hey!
    Thanks for the idea! It worked! I shoulda tried it first! :D

    I'd like to share that info with whoever interested in what it does.
    From <palmOne>:
    http://kb.palmone.com/SRVS/CGI-BIN/WEBCGI.EXE?New,kb=PalmSupportKB,CASE=obj(887),ts=Palm_External2001#incradle

    In-Cradle Reset

    Rechargeable devices only
    An in-cradle reset will reset the charging circuitry in a rechargeable device. This is helpful if your device turns off as soon as you turn it on, or if it doesn't seem to be charging when you connect it to a power source.

    The charger can be any type of cradle or cable that charges your device. The important bit is to make sure the power adapter is plugged in and supplying power to your device during the reset.


    1. Connect your device securely to its charging cradle or cable, and connect the cradle/cable to a power source.
    2. Use an unfolded paper clip, or the reset tool at the tip of your stylus.
    3. Gently press the RESET button inside the hole on the back panel of your device.
    4. All data on your device should be retained. If you do lose data after a soft reset, you may have a more serious issue with your hardware that requires a repair.
    5. After a soft reset, a logo screen appears, followed shortly by a Preferences screen asking you to set time and date.
     
  4. djfusion

    djfusion Mobile Evangelist

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    Lol, I can't take the pressure! :) Man, April is gonna ROCK!!
     
  5. Morden

    Morden Senior Member

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    Hello everyone!

    I've been following this topic for a long, and decided to upgrade my TT,
    which is now 1,5-2 years old, and its battery not very strong...
    3-3,5 hours of continous use max.

    So i ordered an 1400mAh Li-Polys, which arrived yesterday.

    Just finisihed stuffing it into the TT. It was quite straightforward:
    removed the control circuit from the old battery, soldered it onto the
    new one, cut some plastic from the inside (to accomodate the length of
    the new battery), and put the new muscle back in... which was the
    hardest part :) and closing the TT :)

    Now it is on the charger :)

    With the charge which the battery had on arrival, I've already played
    about 1 hour of mp3, while the level dropped from about 60% to 50%.

    I'll see.... but looks promising :)
     
  6. snickersmd

    snickersmd Mobile Deity

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    1400 mAh?

    What brand, where did you buy it from, how much?

    My guess is that they over-rated the capacity, but I would love to know if manufacturers have really managed to squeeze 1400 into the space. After all, even the 1300 of the T5 proved to be a few mm too big. It is more likely that this is a 1200 being rated up as a 1400. Back on page 72, ssdillon shows us a picture with a label saying 1800 mAh but his tests showed a life of 2.5 hours -- so the actual is more like 800 mAh. However, you report that your initial tests are okay. The thing is, you are a TT upgrader, and your battery consumption will be considerably less than the T3 upgraders. You could easily plug in a 900 or a 1000 mAh into a TT and get the same visible results as T3 upgraders with a true 1200.

    You gotta post links! :) Even if the battery says it's 1400 but is really something like 1200 it could be an improvement over our existing 1200, which is actually an 1100. It could prove to be the Kokam replacement we've all been searching for! But we'll never know unless you tell the rest of us so we can run tests and verify! Anyway thanks a bunch for sharing your experience with us.



    On the pre-manufactured batteries, updates to follow this week.
     
  7. Morden

    Morden Senior Member

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  8. Morden

    Morden Senior Member

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    Here it is assembled :) good quality pictures, thanks to a mobile phone :)

    m.
     

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  9. klw

    klw Guest

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    Nice work Morden! Interesting battery source you found. I guess you've got a T1.5 now!

    That one won't fit in a T3 though due to the 6mm thickness.
     
  10. Morden

    Morden Senior Member

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    Here is a BatteryTime result on the second charge (3.5 hours charging):
    BTooth off, Beam receive off, Backlight off.

    BatteryTIME 2005 Mar 23;19:49

    DISCHARGE

    Warning/Critical: 3.72V/3.69V
    Battery type: Lithium Ion
    Plugged-in: no

    Time;Battery;Voltage
    00:00:02 100%;419V
    00:32:31;99%;402V
    00:33:00;98%;402V
    00:33:06;97%;402V
    00:33:12;96%;402V
    00:33:18;95%;402V
    00:33:35;94%;402V
    00:33:41;93%;402V
    00:33:47;92%;402V
    00:33:53;91%;402V
    00:34:11;90%;402V
    00:34:28;89%;402V
    00:34:34;88%;402V
    00:40:03;87%;400V
    00:40:08;86%;400V
    00:47:40;85%;398V
    00:48:33;84%;398V
    00:49:02;83%;398V
    00:59:17;82%;396V
    01:01:14;81%;396V
    01:16:35;80%;394V
    01:23:20;79%;394V
    01:23:26;78%;394V
    01:38:42;77%;392V
    01:44:36;76%;392V
    01:44:42;75%;392V
    01:44:48;74%;392V
    01:59:20;73%;390V
    02:00:15;72%;390V
    02:00:34;71%;390V
    02:01:04;70%;390V
    02:14:42;69%;388V
    02:18:05;68%;388V
    02:19:17;67%;388V
    02:19:23;66%;388V
    02:29:45;65%;387V
    02:34:56;64%;387V
    02:49:30;63%;385V
    02:51:12;62%;385V
    02:51:18;61%;385V
    02:53:33;60%;385V
    03:03:59;59%;383V
    03:04:05;58%;383V
    03:08:41;57%;383V
    03:23:03;56%;381V
    03:27:47;55%;381V
    03:27:53;54%;381V
    03:27:59;53%;381V
    03:46:57;52%;379V
    03:50:56;51%;379V
    03:54:35;50%;379V
    04:19:32;49%;377V
    04:23:23;48%;377V
    04:25:12;47%;377V
    04:26:48;46%;377V
    04:27:41;45%;377V
    04:27:46;44%;377V
    04:28:16;43%;377V
    04:58:06;42%;375V
    05:01:55;41%;375V
    05:06:13;40%;375V
    05:06:19;39%;375V
    05:06:25;38%;375V
    05:10:16;37%;375V
    05:10:22;36%;375V
    05:10:51;35%;375V
    05:47:33;33%;373V
    05:47:39;31%;373V
    05:52:23;30%;373V
    05:53:25;29%;373V
    05:53:31;28%;373V
    05:53:37;27%;373V
    05:53:43;26%;373V
    05:54:02;25%;373V
    05:54:08;24%;373V
    05:54:14;23%;373V
    05:55:30;22%;373V
    05:55:36;21%;373V
    05:55:42;20%;373V
    06:14:19;19%;371V
    06:14:25;18%;371V

    Not bad :)
     

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