Question about HP iPAQ h6315/h6365 Pocket PC

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Battery backup related

I am having HP 6365.
If main battery(LiON) is 100% dry
why the i PAQ is not switching in back up battery(NiMH) which is 100% full.
whats the purpose of backup battery .

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  • 25 Answers

Most of your data (phone directory, calendar etc) is stored your pda's ram. If your LiON battery runs flat , the pda wont start up, your backup battery kicks in to preserve the data. If your NiMH battery runs flat, you will loose all data in the phone or the equivalent of a hard reset.

Posted on Dec 03, 2007

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1 Answer

I have replace my main battery and it showing 100% charge but I am facing bit trouble.My( PDA HP IPAQ 6365) battery not giving standby. what is backup battery? It is showing 0% charge? please help


The backup battery is not user replaceable. If you have some electronics experience you could open the device and replace it yourself but it involves cutting out the old battery and soldering in a replacement. An easier solution is to take it to a phone repair shop and get a quote to replace the battery, probably around $ 60. They may even give you a 3 month warrantee.

Apr 06, 2011 | HP iPAQ h6315/h6365 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

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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

Back battery bad


There are two batteries. main and backup battery

the below video shows how to replace the backup battery, V6HR , of your hp ipaq hx4700

http://www.repairhppda.com/video/Repair-for-HP-iPAQ-HX4700-HX4705-backup-battery-replacement-guide-V6HR.html

Nov 26, 2008 | HP iPAQ HX4700 Pocket PC

1 Answer

Main Battery Power


It cannot switched the batteries. The backup one is a small internal battery just to keep the CMOS with data. That's it.

If you main battery is not charging or when unplugged won't power on, the is likely the main battery is defective, or the charging circuitry of it is failing.

Best regards,

Jul 01, 2008 | HP iPAQ RX3115 Pocket PC

1 Answer

HP Pavillion DV 9000 battery going down very fast ..


Try this 1st:

Computer Cleaning Information

If than it dont work for ya try this 2nd:

Issues and information on NiMH batteries.
The battery's longevity is directly related to the depth of discharge.

Good Luck, Please dont for get to Vote, Thank You.

Dec 19, 2007 | HP Pavilion dv9000z Notebook

3 Answers

Back up battery


 recharge the battery by connecting the HP iPAQ to AC power using the cradle or the AC adapter or insert a fully charged battery into the HP iPAQ.

Oct 07, 2007 | HP iPAQ hw6515 Pocket PC

1 Answer

HP iPAQ 6365


Please perform following steps.
Take the back up of data.
Clean the battery.
Hardware reset.


Perform the Hard reset

1. Press and hold the Answer/Send, Power, and End Call buttons.
2. While holding these buttons, use the stylus to lightly press the Reset button until the device restarts.
3. When the HP iPAQ restarts, release all of the buttons, and then remove the stylus from the Reset button.

Sep 12, 2006 | HP iPAQ h6315/h6365 Pocket PC

1 Answer

Loss of memory


The back up battery always shows 100%, as far as my experience shows. The backup battery is only utilized to retain memory while the main battery is dead. The backup battery charges first, so if the ppc has enough juice to be turned on, the backup battery should be at 100%, unless it is plugged in and you are just now turning it back on. Even so, it will probably still show 100%.

Basically, you left it on too long and all the batteries died. Sorry, but your data is gone :-(

Sep 14, 2005 | HP iPAQ RX3715 Pocket PC

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E-125 Turns off and won't turn on


This is what I suggest: Get yourself a new backup battery. First backup your Casio. Then install the main battery. Plug the Casio in and recharge overnight. Once recharged, install the new backup battery. Make sure you do not touch the battery with your hands. Use a tissue. This should solve your problem if the Casio is not physically damaged.

Sep 05, 2005 | Casio Cassiopeia E-125 Pocket PC

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