Question about HP iPAQ hw6515 Pocket PC

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Back up battery

Hi My back up battery doesn't charge even when the main battery is fully charged. How do I fix this? Does it need a new NiMH backup battery? How do I replace it? Thanks Flatty

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Re: Back up battery

Hi, my ipaq 6515 is dead (red light while charging) I need to change the backup battery. Do you still have photos showing how to replace it? Thanks!!

Posted on Jul 27, 2010

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Re: Back up battery

It sounds like (in all 3 cases) a new backup battery is required.while these are cheap to obtain, they are not always that easy to replace. I can provide detial on how to change them if required.

email, and i'll send a picture guide to you.

**Rytech cannot be responsible for damage caused to your ipaq by follow any of our self help guides. If in doubt, contact a authorised HP engineer**

Posted on Jun 20, 2008

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Re: 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.

Posted on Oct 19, 2007

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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

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

2 Answers

Backup battery discharging

hi thanks for using fixya!

You have to bring your Dell Axim X5 PPC to a service center, to check further the back up battery if needs to change it.

If you need further assistance, let me know.

May 28, 2009 | Dell Axim X5 Pocket PC

1 Answer

Internal back up battery status: NONE

Burn it...
Smack oN the Floor..
It gonna be Oc...

Nov 05, 2008 | O2 Xda IIs 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

The backup battery not working

Hello Paul,

Yes the battery can be replaced but this will require you to dissasemble the pda. The problem you face is a clear sign that this battery has failed. There has always been a problem with hp's battery measurement algorithm regarding that secondary backup battery. Altrough it is empty or even if you remove it, the program will still display a full bar. In order to change this battery you will need to remove the screws from the back of your unit. The casing will come off pretty easy. The back-up cell is a small coin like battery most probably wrapped in a green plastic shel. you should find a similar battery and connect the pins from the old one to the new. The battery size is not critical as long as you can make it to fit in the space inside. Try, however, not to use a very small battery because it will drain much faster then larger ones. Carefull when observing polarity.
If you need more informations please reply.

Feb 08, 2008 | HP iPAQ H4150 Pocket PC

1 Answer

Dell X5 backup battery


I will attempt to answer both questions and give some insite.

1st- No, the charger does not recharge the backup battery. The battery is the same kind of battery as you would have in a watch which at this time are not rechargable, but that would be a great idea.

The way it works is that when the main battery is charged the X5 uses that as its energy source. Only when the unit is off and or the main battery is depleated does the back-up battery kick in. Hence the name (back-up battery).

As for a solution to your problem. It sounds to me like you have a problem with your primary battery. I don't believe that it has much time left or it may just be a corrosion problem. I would try clening the battery contact point on the battery as well as on the X5 with some alcohol and a q-tip. I would also check the contacts where the back-up battery is. I have worked on watches before and their batteries will sometime cause some corroding.

Sep 15, 2007 | Dell Axim X5 Pocket PC

3 Answers

E-125 No Power

are you checking your adapter. i had the same problem with my casseopeia e115. i searched and searched for the battery which even casio doesn't offer anymore. i bought a battery pack which works great w 4 AA batteries but it's bulky and you lose data when you turn off the batteries. i finally went on to discover that my charger/adapter that plugs into the e115 and the serial cradle was scorched by a lightening strike and it was not charging and eventually the batteries DIED!!! I took the adapter to an electronics repair store and for $15.00 they rewired the adapter and it works!!!! it charged the batteries and worked fine.(altho i have to visit them again because i think one of the new wires is bent and i have to position it perfectly to keep charging.) BTW: any one looking for a new casio battery jk210lt...i have a couple to sell! ;-) hope this helps

Sep 06, 2005 | Casio Cassiopeia E-125 Pocket PC

2 Answers

E115 Won't Hold Battery Charge

You might hook your charger up to your battery and check the voltage that you are getting when it is fully charged. It may be that the charger is bad. Your voltage when fully charged with the battery on it should be a little over the rated voltage of the battery. Just a thought. Be sure you are using the correct poweradapter/charger also. Reply With Quote

Sep 06, 2005 | Casio Cassiopeia E-115

1 Answer

Casio E-125

Blinking amber light means the battery is not fully recharged. Once it is charged, press the power button. If the the device still does not turn on take out the main battery and the backup battery. Put the main battery in first, then the backup battery and put the battery switch in the lock position. Press the power button and you should see initializing memory..., then starting..., then it will ask you to set up the device.

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

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