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HP iPAQ h4155 Backup Battery Replacement

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  1. HP iPAQ h4155 Backup Battery Replacement, Battery: crwdns2935265:01crwdnd2935265:01crwdnd2935265:01crwdne2935265:0
    • While sliding the silver release tab up, simultaneously lift the cover up from the left side.

  2. HP iPAQ h4155 Backup Battery Replacement: crwdns2935265:02crwdnd2935265:01crwdnd2935265:01crwdne2935265:0
    • Push the tab left to right to remove the cover.

  3. HP iPAQ h4155 Backup Battery Replacement: crwdns2935265:03crwdnd2935265:01crwdnd2935265:01crwdne2935265:0
    • Now, lift the battery up and away from the device to remove it.

  4. HP iPAQ h4155 Backup Battery Replacement, Back Case: crwdns2935265:04crwdnd2935265:01crwdnd2935265:01crwdne2935265:0
    • Remove the four silver screws using the T5 Torx Screwdriver (T5 x .25 in).

  5. HP iPAQ h4155 Backup Battery Replacement: crwdns2935265:05crwdnd2935265:01crwdnd2935265:01crwdne2935265:0
    • Remove the single black screw that is located beneath the HP sticker with the T5 Torx Screwdriver.

  6. HP iPAQ h4155 Backup Battery Replacement: crwdns2935265:06crwdnd2935265:01crwdnd2935265:02crwdne2935265:0 HP iPAQ h4155 Backup Battery Replacement: crwdns2935265:06crwdnd2935265:02crwdnd2935265:02crwdne2935265:0
    • Next, use your plastic removal tool to separate the gray back from the black center piece.

    • For better results, start the separation at the corner piece.

  7. HP iPAQ h4155 Backup Battery Replacement: crwdns2935265:07crwdnd2935265:01crwdnd2935265:01crwdne2935265:0
    • Remove the back case.

  8. HP iPAQ h4155 Backup Battery Replacement, Face Plate: crwdns2935265:08crwdnd2935265:01crwdnd2935265:01crwdne2935265:0
    • Now that the back cover is removed, use the #00 Philips x .17 screwdriver to remove the small screw to the left of the SD card slot.

  9. HP iPAQ h4155 Backup Battery Replacement: crwdns2935265:09crwdnd2935265:01crwdnd2935265:02crwdne2935265:0 HP iPAQ h4155 Backup Battery Replacement: crwdns2935265:09crwdnd2935265:02crwdnd2935265:02crwdne2935265:0
    • Next, unlock and remove the ribbon cable.

    • Using metal tweezers, carefully pull back on both sides of the brown bar unlocking the cable and slipping it out of the connector.

    • The bar, the connector, and the cable are fragile components that are easily broken.

  10. HP iPAQ h4155 Backup Battery Replacement: crwdns2935265:010crwdnd2935265:01crwdnd2935265:02crwdne2935265:0 HP iPAQ h4155 Backup Battery Replacement: crwdns2935265:010crwdnd2935265:02crwdnd2935265:02crwdne2935265:0
    • Next, remove the wire from the bottom of the mother board.

    • The easiest method is to use metal tweezers and grip the plug closest to the connector.

    • Make sure all the connections are properly disconnected before separation from the motherboard.

  11. HP iPAQ h4155 Backup Battery Replacement: crwdns2935265:011crwdnd2935265:01crwdnd2935265:01crwdne2935265:0
    • Next, use a plastic removal tool and separate the silver front case from the black frame.

  12. HP iPAQ h4155 Backup Battery Replacement, JoyPad buttons: crwdns2935265:012crwdnd2935265:01crwdnd2935265:01crwdne2935265:0
    • Remove the 4 screws along the bottom of the faceplate

    • They are #00 Philips head screws

  13. HP iPAQ h4155 Backup Battery Replacement: crwdns2935265:013crwdnd2935265:01crwdnd2935265:02crwdne2935265:0 HP iPAQ h4155 Backup Battery Replacement: crwdns2935265:013crwdnd2935265:02crwdnd2935265:02crwdne2935265:0
    • Once removed you can easily separate the keys from the body.

  14. HP iPAQ h4155 Backup Battery Replacement, Backup Battery: crwdns2935265:014crwdnd2935265:01crwdnd2935265:02crwdne2935265:0 HP iPAQ h4155 Backup Battery Replacement, Backup Battery: crwdns2935265:014crwdnd2935265:02crwdnd2935265:02crwdne2935265:0
    • once the joypad key have been removed use the tweezers to carefully maneuver the wire out of its clip releasing the battery

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To reassemble your device, follow these instructions in reverse order.

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John Pagliero

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942 crwdns2915208:0crwdne2915208:0

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This guide is AWESOME.. Thanks! I have an iPAQ 1945 h1900, but this guide was the exact same for my device. I got as far as the taking the battery out without removing the 5th screw beneath the "warranty void" sticker. My only issue--do you know where to get the replacement battery?

Drew Stafford - crwdns2934203:0crwdne2934203:0

IMPORTANT. The back up battery does not show charge immediately ( i don't know why ) Id read something before. When in April 2023 i swapped the old B U Batt for a known good one from another ipaq. At the end of the job . The level of charge on the b.up was zero. I charged the main batt to 100% then removed the ipaq from the charger and left it for a couple of hours . When I next checked it there was 100% on both batts....

Ron - crwdns2934203:0crwdne2934203:0

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