Question about HP iPAQ H1910 Pocket PC

IPaq 1910 backup battery replacement

I currently have an iPaq 1910 that does not have a working backup battery. That is the one that is supposed to keep all of your data while you replace the rechargeable lithium battery. Currently if my lithium battery goes dead I lose all the data in my device. Is there a way that I can replace the battery ? The ideal is if I can do it myself. The second is if I can send it in to someplace that will do it for me. Any instructions or references would be great. Thanks in advance.

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Http://www.pdastreet.com/forums/forumdisplay.php?s=&forumid=12 is good!

Posted on Jun 26, 2008

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450 Answers

Try, http://www.pdasmart.com/products/19927ipaqparts1900.htm

iPaq 19xx Backup Battery

pdasmart.com

If your backup battery is not...

Posted on Sep 07, 2005

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Posted on Jan 02, 2017

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Replace backup battery

http://www.paulstravelpictures.com/HP-iPAQ-HX4700-PDA-Backup-Battery-Replacement-Guide/index.html
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I tried using 3 AA NiMH batteries (total DC V=4.2, 1600mA) as a backup/charger for my HP Ipaq 612c battery. I inserted a resistor (4.7 ohms) in the circuit to reduce the current. The red light charging...

Hello,

You built one of these too, eh?

Yes, there can be a problem doing this. First off, 3 AA batteries does not equal 4.2 volts, they are 1.2volt nominal so 3 * 1.2 = 3.6volts. When they are just off the charger, terminal voltage will be closer to 1.5v, so 1.5*3 = 4.5 volts.

Using ohms law, E=I * R, we can find your current as I = E / R or I = 4.5v / 4r7 as .95Amps (almost a full amp) that you would see worst case. The resistor is doing nothing for you.

The reason that the charge light blinks intermittently is because the charge controller (lithium battery, right?) is pulsing due to low voltage.

Try this: Take *6*, yes, 6, AA batteries, your choice of chemistry, and put them in series. That will give you a nominal (alkaline) voltage of 9v. Connect a low dropout 5v regulator such as an LT1117-5. Then you will be able to use your battery backup much more effectively.

On a different note, I used 4xAA (NiMH) and powered my ipaq 3650 directly. Worked great. Your mileage may vary though.

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read the manual yet, or lost it> or?
most of these have 2 batteries
one that pops out one more that solders down.
guess which one retrains data.
finding parts for relics like this is not fun
what good is this thing besides, wall art?

why ask here at all, we are not HP , nor are there HP books here.
so ask here.

there are folks there that might remember so long ago
or even have old books laying about after all they are HP.

https://h30434.www3.hp.com/

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You need a new battery and yes you can replace it.Check with HP or a wireless store for the right battery type

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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

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