Question about HP iPAQ RX3715 Pocket PC

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Shows Li-On battery charged when plugged into AC, shuts down when unplugged

My 3715 shows the battery (replaced once already to no avail) as charged 100%; once I unplug the AC charger, the battery reading immediately goes to 0% and it shuts down. Any suggestions?

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Re: Shows Li-On battery charged when plugged into AC,...

Here is a palm article on the battery not holding charge-,/

My battery loses its charge very quickly

Like all Lithium Ion batteries, the battery in your device will eventually wear out. If you charge your device fully but it loses power after a few hours (or sooner), it may be time to replace the internal battery.

Sounds like you already did this. Do you have someone you know who has the same battery you could try? Or try your battery in their device?

Also this site looks good -

Step #11

You can connect it via USB and let it charge that way a little while, then try charging it normally. It's called trickle charging-

Trickle charging
Some Palm devices have the ability to "trickle charge" from a USB port on a PC or Mac. This means that it receives a very small amount of charging from the USB port, even if it is not connected to its AC charger. If your device is capable of this function, the charging time will be significantly longer for a trickle charge (depending on the power rating of the PC USB port). However, the device may not charge at all on an unpowered USB hub (or for example off off a keyboard).

Posted on Jan 08, 2008

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Tmobile dash isn't turning on

  1. Verify that the OEM Charger and Battery are being used.
    • Only the AC charger, Car charger, or USB data cable that came with or was created for the device should be used; others can damage the device and/or battery.
  2. Is the device warm?
    • When using the device for prolonged periods of time, such as when you're talking on the phone, charging the battery or browsing the web, the device may become warm. In most cases, this condition is normal and therefore should not be interpreted as a problem with the device.The device has a protection feature that if the device becomes too warm (due to use of GPS while charging, BT while charging, using the device as a wireless modem, etc), the auto protection feature will be triggered and the charging process will be stopped. Once the device cools down, the device will then begin charging again.
  3. Check the USB Port on the device for any bent or misshapen PIN's.
    • If some are found, that is the most likely cause and this is considered physical damage not covered under the Warranty.
  4. Remove the battery and inspect the contacts.
    • Remove any debris/residue found on the device or battery contacts with a soft, dry cloth.
  5. Look closely at the battery contacts on the phone to see if they are bent out of shape.
    • If they are bent, the device will need to be exchanged.
  6. Try charging the device (try different power sources as well as chargers):
    • Plug in USB to device and PC; is the LED indicating that the device is charging?
      • Note: If the device isn't charging while connected via USB to a PC, go to Start>Settings>More>Power>Power Management and make sure that "When device is turned on, do not charge the device when connected to the PC" is set to OFF.
    • Plug in AC Charger to device and outlet; is the LED indicating that the device is charging?
      • LED indicators: Charging is indicated by a solid Amber light on the upper Left side of the face of the device.
        • Note: If the battery is completely dead, the light will be a solid RED for a few seconds while it is charging; once the device has enough power to turn on, the light will turn to Amber.
  7. Try another Power Source.
    • Try a different outlet to rule out that as the issue.
  8. Try another battery in the device.
    • If another battery doesn't work, perform a Hard Reset.
      • If the device powers up after Hard Reset, test the unit for a few days. If issue returns, device can be considered for an exchange.
      • If device shows charging with one (AC Charger or USB) and not the other, issue is with the accessory. Replace accessory.
      • If device will only power up when attached to charger (AC or USB) it is likely the battery needs to be replaced.
Device won't hold a Charge
The life of the battery between charging sessions will vary depending on which features of the unit are being used.
  1. Verify the you are using:
    • OEM AC Charger
    • OEM USB Data Cable
    • OEM Battery
  2. Fully charge the battery using the OEM AC Charger
    • USB and car chargers are trickle chargers meant to get the user through until they can get to their AC Charger.
  3. If the device is not lasting the advertised Talk time, with minimal use, try another OEM battery in the device.
  4. If the battery life still is not meeting the advertised Talk time (with minimal use), the device will need to be repair/replacement.
Device won't Power on
  1. Attempt to charge the device.
    • If the battery is dead, the device will need to charge for a few minutes and then should power on once this happens.
  2. Attempt to power the device on by pressing the Power Button for 3-5 seconds.
    • If the device doesn't power in, perform a Soft Reset using the stylus.
  3. If the device still doesn't power on, perform a Hard Reset.
  4. Try another battery.
  5. If the device still will not power on, it can then be considered for repair/replacement.
Handset Powers off

  1. Make sure that the device is actually powering off and not just going into hibernate mode by pressing the power button once.
    • If the screen comes back on, the device is not powering down.
  2. If possible, check the battery level by going to Start>Settings>More>Power>Power Management.
    • The charge should be no lower than 10%; if it is, charge the device and retest.
  3. Try another battery in the device.
    • If the device stays powered on with a different battery, the issue is with the accessory not the unit.
  4. If the device still powers off with another battery, Hard Reset the device and retest.
    • If the issue remains after the Hard Reset, the device it can then be considered for repair/replacement.

Nov 13, 2010 | T-Mobile Dash Smartphone

1 Answer

Won't stay charged

you might need to replace:

A. the main Li-Ion battery

B. the backup Ni-methal battery.

or maybe C, fix your battery cover.

that's it! great device btw..!

Aug 28, 2009 | HP iPAQ H4150 Pocket PC

1 Answer

Blackberry charge symbol appears but does not charge battery

are you using the charger that came with the BlackBerry?  cause sometimes that can make a difference.
otherwise you might just need to get a new charger.
and usually the wall chargers work the best.
i had a BlackBerry Pearl 8100 and the same thing happened to mine.

Aug 20, 2009 | RIM Blackberry Curve 8300

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

4 Answers

My HTC p3300 battery not gettin charged. It works on direct power for some time and get automatically shutdown after some time..indicating no charge. Keeps shutting down often.

I too have been experiencing problems. Replaced the battery but it happened again. The battery says it is at almost 100% capacity however several times in the day, when I go to turn it on it doesn't respond. I end up taking the battery out and then have to connect it to a charger (USB) so that the charging light blinks red once and then turns off. I can then put in the battery again and it will start up again. If I don't connect it to the charger cable to drain (get the red light to flash once), and try just putting back in the battery, I've noticed that the screen has a faint glow as though it was on but the screen is completely blank. I'm starting to think that there must be a short circuit somewhere because I'm going to assume that the new battery is good.

Feb 20, 2009 | HTC P3300 Smartphone

1 Answer

Phone is not working

My phone had the same problem and it was a battery charge problem. I bought an external charger and another battery and now everything works fine but I have two batteries and an external charger, the phone doesn't charge the batties.

Aug 13, 2008 | HTC P3300 Smartphone

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

Palm Tungsten E2 won't work after power cord is removed.

The traditional steps for resetting charging problems are:
1) press reset /while/ the power cord is plugged in
2) unplugging the battery for about 30 seconds, then plugging it back in

You have done #2, but I do not know if you have done #1. Try it, then try to recharge again. If that fails then you probably need a new battery. I have found them on eBay before.

Feb 22, 2008 | Palm Tungsten E2 (Multilingual) Handheld

1 Answer

No power to Ipaq 3715

Just did this one, please refer to

For the solution

Jul 29, 2007 | HP iPAQ RX3715 Pocket PC

2 Answers

Ipaq totally dead after leaving it in my car for two weeks, temperature down to -6C

Its possible (but not likely) that when you took it into a warm room condensation built up inside it. Try removing the battery, memory cards and letting it sit in a warm, dry environment for a few days and try again. If nothing changes I suspect that a component has failed, but -6F is still within the operational range of commercial electronics. If your device is still in warranty then I would call HP up and ask for a warranty replacement. Let us know if you have any other questions and please don't forget to rate this posting.

Feb 12, 2007 | HP iPAQ RX3715 Pocket PC

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