Question about HP iPAQ H4150 Pocket PC

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Hp ipaq hx4700

I have a hx4700, powers up and works well with a fully charged battery. I purchased a new battery, installed and attempted to charge. The charge light will not even come on?? Any ideas?

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  • 198 Answers

Hello uwood, The problem you have is related to the battery's nominal tension value. For the pda to light up the amber led dispaying that the battery is charging the tension value at the battery pins must be above 3.27Volts. If this is under that value the PDA's charging circuitry woun't power up and therefore the amber led woun't turn on. The battery you have bought is probably defective or not compatible with your pda model. If you are shure this is not the case or if the battery works with other pda's (if you have the possibility to check that), try a master reset at first and if this doesn't help try a firmware (ROM) update, you may find the ROM files on HP's site. For more informations please reply back.

Posted on Apr 02, 2007

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Posted on Jan 02, 2017

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Replaced ipaq 4150 internal backup battery but


read the manual yet, or lost it> or?
most of these have 2 batteries
one that pops out one more that solders down.
guess which one retrains data.
finding parts for relics like this is not fun
what good is this thing besides, wall art?

why ask here at all, we are not HP , nor are there HP books here.
so ask here.

there are folks there that might remember so long ago
or even have old books laying about after all they are HP.

https://h30434.www3.hp.com/

Dec 10, 2017 | HP iPAQ H4150 Pocket PC

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Hp ipaq wont charge from usb cable. turns on for a few seconds nd loads but then turns off. it wont fully charge.


On the the IPAQ 6515 and others, there is a USB Power option that you must enable to 'slow' or 'fast' charge from USB connection.

Jan 13, 2010 | HP iPAQ HX4700 Pocket PC

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Backup battery won't charge


It must be the hp pda battery problem or the problem of your hp pda battery charger.
iPAQ hx2795

Jan 03, 2010 | HP iPAQ HX4700 Pocket PC

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Ipaq 1940 losing programmes during main battery changeover


  1. Plug the charger adapter into the charging port on the bottom of the HP iPAQ Pocket PC.
    Figure : Charging the battery
  2. When the power indicator on the top of the HP iPAQ Pocket PC turns solid amber, the unit is fully charged and can be disconnected from the AC adapter (approximate time to fully charge a unit is four hours).
NOTE: The amber charge light blinks while the battery is recharging and turns solid (nonblinking) when the battery is fully charged.In the event of a low backup battery warning, charge the unit immediately before removing the main battery to avoid data loss. To view the amount of charge left in the backup battery, tap Start, Settings, the System tab, and Power.
Charging with the universal desktop cradle and AC adapter Use the universal desktop cradle to charge the HP iPAQ Pocket PC, or synchronize the HP iPAQ Pocket PC with a computer.
Follow these steps to charge the HP iPAQ Pocket PC using the universal desktop cradle:
  1. Plug the AC adapter into an electrical outlet and connect the other end of the AC adapter to the AC connector on the universal desktop cradle.
  2. Connect the serial or USB cradle cable into the appropriate port on the desktop PC.Figure : Connecting with the cradle
  3. Slide the bottom of the HP iPAQ Pocket PC into the cradle and push firmly to seat it.
CAUTION: To avoid damaging the HP iPAQ Pocket PC or the cradle, make sure the pins are aligned before pushing the HP Pocket PC into the cradle.
    Figure : Charging with the universal desktop cradle
  1. AC adapter into electrical outlet
  2. AC adapter into universal desktop cradle
  3. HP iPAQ Pocket PC into cradle
NOTE: The amber charge light blinks while the battery is recharging and turns solid (nonblinking) when the battery is fully charged.There are stabilizers located in the universal desktop cradle that assist in aligning the unit when there is no expansion pack attached. When placing the HP iPAQ Pocket PC with an expansion pack attached into the universal desktop cradle, the stabilizers will be pushed down by the expansion pack. To release the stabilizers for use without an expansion pack, press the button on the back of the cradle.
Charging with the optional USB Autosync cable Charge the HP iPAQ Pocket PC using the optional USB Autosync cable by connecting the Autosync cable to the HP Pocket PC and the personal computer. The HP Pocket PC will be charged using power from the personal computer.
For more information on charging the HP Pocket PC using the optional USB autosync cable, from the Today screen, tap Start, Settings, the Systemtab, Power, the USB Charging tab, Settings, and Help.
Charging a low battery The HP iPAQ Pocket PC will not turn on if the battery has a low charge (less than 3.2 Volts). Fully charge the battery prior to using the HP Pocket PC.
If the charge on the battery goes below the 3.2 Volts as a result of not being connected to the universal desktop cradle or the AC adapter, no damage will occur to the battery. However, the HP iPAQ Pocket PC charge indicator light will not flash until the battery reaches the minimum charge of 3.2 Volts and a normal reset is performed.
Follow these steps to charge and reset the HP iPAQ Pocket PC:
  1. Connect the HP iPAQ Pocket PC to an A/C power supply.
  2. Charge the battery to the minimum level of 3.2 Volts (this will take 5 to 30 minutes depending on the current charge level).
  3. Perform a normal reset by using the stylus to lightly press the Reset button on the bottom of the HP iPAQ Pocket PC.
  4. Turn on the HP iPAQ Pocket PC.
Keep the HP iPAQ Pocket PC connected to the universal desktop cradle or AC adapter when it is not in use.

Aug 25, 2017 | HP iPAQ H1945 Pocket PC

1 Answer

My HP iPAQ hx4700 Pocket PC will not start up. It


Slider switches ok and pointing at the right place in the bottom?

1. Main battery possibly needs replacing.

2. Replace backup battery..

http://www.youtube.com/watch?v=cYwc_-ISnsA



Jul 13, 2009 | HP iPAQ HX4700 Pocket PC

3 Answers

HX4700 will not power up


Hi I'm a pc repair technician, and my ipaq hx4700 has gone exactly the same way. I've been looking round for some kind of technical manual to see if there is any history of internal components going down through heavy use or even manual abuse. Mine stopped after I knocked it whilst working on something. Normally if I see similar symptoms on a pc I'd be looking at internal component failure, more often than not the motherboard itself. I worked on that theory and have looked at prices for an ipaq motherboard. In all honesty the costs for the part and replacement are more than buying a new pda. Sorry for the bad news, but thats the only option I've found all the best

May 20, 2007 | HP iPAQ HX4700 Pocket PC

7 Answers

Cannot power on...


How to correct iPAQ 5450, 5455, 5550, 5555 battery charging problems / dead unit syndrome.

The iPAQ 54xx or 55xx will not power on if the batteries charge is lower than 3.2 Volts, if your battery charge falls below the 3.2 volts level your unit will not turn on, you need to plug the iPAQ into a cradle or AC charge adaptor. Note the charging light on the iPAQ will not flash at all (normally flashes orange) until the battery charge has reached a minimum charge level of 3.2 volts. You then need to perform a normal reset, then the unit should switch on normally.

HP Procedure is as follows:

To charge and reset the iPAQ Pocket PC h5400:

i) Connect the iPAQ Pocket PC h5400 to an A/C power supply.
ii) Charge the battery to the minimum level of 3.2 Volts. This will take 5 to 30 minutes depending on the current charge level.
iii) Perform a normal reset.
iv) Power on the iPAQ Pocket PC h5400

It is recommended that you keep the iPAQ Pocket PC connected to the Universal Cradle or Cable when it is not in use.

Apr 30, 2007 | HP iPAQ HX4700 Pocket PC

1 Answer

Ipaq hx4700 dead :(


I would try a hard reset before you resign yourself to HP repair.

Sep 14, 2005 | HP iPAQ HX4700 Pocket PC

1 Answer

AC charging issue


Sounds like a defective AC adapter.

Sep 11, 2005 | HP iPAQ HX4700 Pocket PC

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