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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  • flatty Oct 20, 2007

    It charged once now won't even turn on I have retired it to the pain in the neck corner!!!

  • Anonymous Dec 03, 2007

    Exactly same problem on 6515. Whatever if i place the phone on the cradle or charge it through AC it is still dead. Any solutions?

  • Anonymous Jun 18, 2008

    My backup battery is dead it will not take chager any longer it is 3 years old how to replace it?



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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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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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 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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when the unit is totally drain (main battery and back-up batter is totally drain), you need to charge the device at least 20hrs to fully charge the main and back-up battery check manual of mc1000 re battery charging @ page 21-22

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Canon Powershot A470 - asks to 'change battery' every time it is turned on, then turns off immediately. This is so even when new, fully charged batteries (different brands, rechargeable, non-rechargeable)...

This happened with my Canon Powershot A470. I sent it back to he manufacturer and they said I was using the wrong batteries. Even though the camera is supplied with two alkaline batteries, they recommend using AA NimH rechargable batteries.

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Have an MC9090 that times out after 3mins. I know how to change the timeout in Cntrl panel but the settings go back to original if the scanner is rebooted? Any help would be appreciated. Thanks

Hello george parce. You're details are perfect and I can help you here. The reason your settings aren't returning after a reboot is due to the backup battery. I'll spare you the technical details (but if you'd like them, just send me a message or email and I'll happily provide) and get straight to solutions. The backup battery gets it's power from the main battery and also charges thusly. Realize that it usually takes a whopping 15 hours to fully charge this backup battery. I recommend to all my clients having this problem that they leave the unit in it's cradle with the main battery in overnight or a little longer. This will at least get a good charge in the backup battery, if not charge it fully. If the problem persists, I recommend you contact Motorola/Symbol or the vendor you purchased it from about warranty/repair for the backup battery. I hope this helps and at the very least have helped you isolate the issue. Good luck!

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Need new battery and I have a NiMH battery replacement. Can I use it on my phone? I have model number 25838GE6-A.

NiMH is a universal replacement battery. It will work in place of nicad and other types of rechargeable batteries, and will work with virtually any charger

Dec 22, 2009 | Uniden Cordless Phone

1 Answer

NIMH Battery goes off after 20 shots for Nikon Coolpix L01

the camera takes just about any AA pair of batteries ... lithium will give you the most pictures .. your NiMH batteries should last longer unless they are old .. you may have one weak battery ... you can try a pair of standard alkalines to see if there is something wrong with the camera .. if those work ok then you need a new set of NiMH ... there is a new type out called "eneloop" .. they are just like normal NiMH except they dont go dead when you store them .. even after a year they are still charged .. with normal NiMH batteries as they age they will self discharge in 2 weeks or so .. so you have to charge them just before you use them ..otherwise they go dead on their own .. if you charge them then not use them for a week then you will not get nearly as many pictures ... the eneloop batteries fix that .. you can also recharge them many more times than standard NiMH batteries .. they cost about the same ..

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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

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1 Answer

My MPC t2300 laptop wom't turn on.

The Transport T2300 has an internal battery that will run the laptop for several minutes after the main battery goes dead. This feature allows you to save your work and shut down safely. If you run the laptop until both batteries are dead, even a brand new battery can't start the unit again. You have to follow this procedure:
1.Unplug power cord

2. Remove any attached periphal components including the cd rom and/or floppy disk module if you have one. Both remove with a push button switch located on the bottom of the unit.

3. Plug in power cord and charge the unit for a minimum of 24 hours straight. 30 hours is better. This whole time will be spent slowly recharging the internal back up battery.

4. Once that is done, unplug power cord again and reinstall any floppy/cd drives. Plug power cord back in now and charge for at least 24 hours again.

If your backup battery is dead, you can't charge the main battery or turn the unit on. The longer you charge, the better. We had one unit here that had to be on the initial battery backup for 72 hours before it finally took hold. Then, one overnight recharge on the regular battery and all was well.
If you need drivers or manuals for the 2300, all are available on cd at for around $9.50 including shipping, handling, and owners manual

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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,

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2 Answers

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