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Low Battery DATA Lose - HP iPAQ Model h5450 Packet PC

After removing one battery, and placing with a alternative, which may not have a full charge. The unit, loses all data and I have to re-set unit.
Dose the unit have a small battery inside, which needs to be replace periodically. If so, how do you remove the back cover.
HP iPAQ Model h5450 Packet PC

Regards Paul (Australia)

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The h5450 comes with what HP calls a backup battery. It is built into the device and not accessible by the user. However, the backup battery has only enough juice to power the Pocket PC for a few minutes while you change main batteries. Don't expect it to keep your RAM data alive if the main battery runs out.

Posted on Apr 21, 2008

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Posted on Jan 02, 2017

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2 Answers

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

Data missing - Ipaq model HP5555 - did not do hard reset


Hello,

I'm sorry but the HP Ipaq 55xx series store data on a volatile ram based memory. Unlike a nand flash (like usb sticks, memory cards etc) this memory will hold data only as long as it's powered on. If your main battery gets empty you should still be able to retain your files for some 10-20hrs with the backup battery (if it's ok itself and not depleted). After this time the power to the ram memory is cut off and all data is lost.
The problem you face is somewhat related to that backup battery, as it appears it's unable to do it's job and maintain the power to the ram memory at least some 10 hrs. You should have that battery replaced.

There is no way to recover the data from the ram memory as it is stored as an electric charge over some memory cells in the ram chips. When there is no power, these charges dissipate and the pattern is lost.

I'm sorry for having to give the bad news.
Bogdan

Jul 03, 2009 | HP iPAQ H5555 Pocket PC

1 Answer

Trouble charging h5450


try wrapping the cord around the pda

Jun 08, 2009 | HP iPAQ H5450 Pocket PC

1 Answer

Can't reset!


open it, remove 6 screw behind. remove rom batteries for a sec. and plug it on the same place. work . reset flash

Jun 01, 2009 | HP iPAQ H5450 Pocket PC

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IPaq rx3115 working like PC not Pocket PC, need to plugin always


You need to purchase a new removable battery for your RX
The removable batts usually only last about a year (like cell phone batteries).
Although it is showing 100% charge, the battery is not storing enough power to run the ipaq

The rx series uses 2 batteries, one is the removable one u can see/access when u remove the back cover. The other batt is a small round batt which stores the basic info for your system (so you don't lose your data when u swap out the removable battery).

This small (backup) batt is similar to the cmos battery on a laptop or pc.
You cannot easily replace this, as the unit needs to be disassembled to access this batt.
If you are tech-y (and brave), the replacement button batteries are sold on ebay for $9-12

Normally, if your removable batt is bad, you could still use your unit plugged in, and could
remove from AC power without losing data. Not the case if your replaceable batt is exhausted.
When both batteries are bad, you lose everything when u remove unit from AC power.

My workaround without having to disassemble unit:
Purchase and fully charge new removable batt (They have huge capacity ones available for like $15 - better than the original !).
Load up all your programs & settings the way you like.
Perform full backup to SD card (& also on PC via active sync - to be safe)
Now the only time you should lose your data (like hard reset) is if you allow the battery
to completely drain, in which case you can restore your backup.
If you purchase 2 removable batts, you can easily swapout without losing data if you
use the usb charge cable & leave ipaq plugged in while you change battery

Hope this helps






Jun 01, 2009 | HP iPAQ RX3115 Pocket PC

1 Answer

Battery life on hp ipaq hx4705


ask HP?
some have 2 batteries 1 is solder down and that might be a problem. (only flash memory is secure) and all business do backups as part of the job, or go broke fast.. for sure.
what if you lost this relic thing or it was stolen. then what.
be ready for that and win.

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

Dec 09, 2017 | HP iPAQ HX4705 Pocket PC

1 Answer

Backup battery


The backup battery exists to protect your data when the main battery dies. It only has enough power to keep the internal memory 'alive' so you dont lose your files, settings etc.

When the backup battery dies it should be replaced as soon as possible, as the main battery will power the internal memory only while it has charge. Should the main battery die it would be like performing a hard reset.

Jun 16, 2008 | HP iPAQ hw6515 Pocket PC

1 Answer

My ipaq 5450 is not charging


recharge the battery by connecting the HP iPAQ to AC power using the cradle or the AC adapter to atleast 6 hrs continuously 

Oct 20, 2007 | HP iPAQ H5450 Pocket PC

1 Answer

Failing to power up.


Had the same problem: the battery is simply exhausted. Suggest you buy a new battery. A possible solution you might try is to connect it to a charger and make a hard reset (loosing all data and programs stored). Good luck

Sep 03, 2007 | HP iPAQ H5450 Pocket PC

1 Answer

My H5450 won't charge!


When you charge up your iPaq, do you use the cradle, or do you use the AC-adapter with the little iPaq power converter that came with the iPaq? Try both, and see if it charges up your pda. Try and borrow an iPaq car-charger and see if it charges up that way (the ones that do not need the iPaq power converter). If you are lucky enough to power up the iPaq even for 2 minutes, enable USB fast charging in the SETTING -> BATTERY. Your USB-data-cable or cradle will then be able to charge it up that way...

Sep 08, 2005 | HP iPAQ H5450 Pocket PC

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