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
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Re: Low Battery DATA Lose - HP iPAQ Model h5450 Packet PC
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.
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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.
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
where you able to perform the reset? if you wheren't then use a small pin or a needle to press the reset button.
if it sitll doesn't help you may have to perform a hard reset, it should fix the problem but you will lose all data stored in the memory, but everything on a storage card or safe storage / permanent storage will stay.
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.
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
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...