Question about HP iPAQ RX3115 Pocket PC

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Main Battery Power

I have an Ipaq rx 3115. When i got into my settings it lists my AC only has the main battery and the NIMH as the backup. It does show that my NIHM has 100% charge but it will not work when i unplug it from the AC plug in. Is there a way i can change my NIHM to the main battery and my AC to the backup.

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  • reddrob Aug 20, 2008

    I am have the same EXACT problem.

  • hieratic Sep 04, 2008

    Exactly the same problem. Does anybody know why this happens?

  • terrywhitehe Nov 17, 2008

    The main battery shows o% and the battery pack is 100% and as soon as I unplug the IPAQ everything shuts down (at least the screen goes dark) and when I plug it back in it reboots.

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  • 164 Answers

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,

Posted on Jul 24, 2009

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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

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

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

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.

Mar 12, 2008 | RIM BlackBerry Pearl 8100

1 Answer

Battery backup related


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.

Nov 29, 2007 | HP iPAQ h6315/h6365 Pocket PC

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

3 Answers

Ipaq RX 3115 Stops at align Screen


solia, I'm sorry, I didn't mean to close the chat session on you.
Is your unit still under warranty? If so, check with the manufacturer.
They can help.

Mike

Sep 27, 2006 | HP iPAQ RX3115 Pocket PC

1 Answer

Charging


If it's completely dead USB probably can't do it at all. There's a voltage threshhold, and USB only puts out about half the voltage needed to get over it. USB usually won't manage when thenbattery's below 30%. Try connecting the iPaq directly to the AC adapter.

Sep 11, 2005 | HP iPAQ RX3115 Pocket PC

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