hx2110 Battery Calibration

ghayne · 05-24-06, 05:22 AM

Hi,
can anyone tell me how to re-calibrate the battery gauge on a hx2110.
I have a new battery with a higher capacity than the original and my battery gauge is a mess, it sticks at 100% until I do a soft reset.
After a reset the gauge performs OK

Thanks, Garry

Julie · 05-24-06, 11:34 AM

Calibrating the battery includes a hard-reset with the device being restored to factory settings, so be sure to completely backup your PDA, and have any documents or applications (and their license keys) you've installed to main memory readily available to reinstall.

Turn on the PDA and turn off ALL power-saving features (backlight, on battery power settings, etc.). Set the standby time to the minimum - 24 hours (select Settings > System tab > Power > Standby tab).

Leave the PDA on until it turns off, then wait another 24 hours. When it will not turn on even with a soft reset, the battery is flat. If a soft reset turns the PDA on, let the battery drain for another 12 hours.

Then put the PDA into the cradle and plug the AC adapter into the cradle. Wait for the PDA to switch on - it may not turn on for a couple of hours. When it lights up, you should see some kind of message that prompts you to begin battery calibration. If you don't see a message, you may need to let the battery discharge some more.

Let the PDA charge for at least 6 hours after it appears to be completely charged (this will recharge the backup battery and top off the main battery).

phreaker18 · 05-25-06, 10:13 AM

damn Julie ur getting better day by day.... lol
just kidding..... listen to the lady.... she knows her stuff

Fastload · 05-25-06, 01:44 PM

Is that method only for hx2xxx series?

Julie · 05-25-06, 07:31 PM

Phreaker: :D

Fastload: I believe this process will work for any Pocket PC.

Julie

moeen · 08-27-06, 10:22 AM

Originally Posted by Julie

When it lights up, you should see some kind of message that prompts you to begin battery calibration. If you don't see a message, you may need to let the battery discharge some more.

Julie,
I didn't see any message even after 10 days?(my iPAQ is hx2190)
Is this problem of ROM?

Are you Prof. Julie on HP forum?;)

Julie · 08-27-06, 11:32 AM

Originally Posted by moeen

Julie,
I didn't see any message even after 10 days?(my iPAQ is hx2190)
Is this problem of ROM?

Are you Prof. Julie on HP forum?;)

Yes I am one and the same. To resolve your battery issue, I think you need to consider sending your IPAQ to HP for repair.

Julie

phreaker18 · 08-27-06, 12:29 PM

Prof Julie........ :D

Julie · 08-27-06, 10:43 PM

Hey phreaker! Where have you been...haven't seen you round these parts lately.

Julie

phreaker18 · 08-27-06, 11:57 PM

yeah i know Julie.... im sorry Prof. Julie. :D
well have been busy with work n stuff ... so havent been to the forums in a while..
thanks for remember me though..
well make it a point to be more regular...

imported_Harry_S_Truman · 09-12-06, 03:37 PM

Greetings to all.

I would like to ask for more details on how it needs to be done. I've read Julie's explanation, and freely I decided no to leave my hx2110 for itself to drain the battery, but accelerate it playing a big movie with looping with TCPMP.

The battery drains faster, of course, but when I put power back on it, when even with soft reset doesn't turns on, nothing happens. I've tried this twice, one,a hard reset was made, so the first time when I powered back the device, the welcome screen to WM2003SE showed. I made all the initial configuration steps, but when it was done, no battery calibration message showed up. I let it for more hours, but nothing.

Then, today, the second time, it just tried to continue in the same point left when my "draining movie" stopped. No soft reset powered the device on, but it had memory of the activity it was doing.

So now, I'm doing exactly what Julie told us, my hx2110 is draining by itself the battery, without powersave options, max light, 24h selected on "Standby Period". So, to avoid mistakes I'd like to ask:

1) When it really drains out (no soft reset powers it), I connect it to power source. As long as I don't have a craddle, do I have to connect it to my USB cable also?

2) In this moment, I really have to wait for it to power itself up or can I power it manually when is charging? Those two times it was possible for my to power it up.

3) What will be first? Welcome screen post-hard reset or calibration mode?

4)When the battery calibration should start? At the beginning of the charge or at the end (100%). Somewhere between?

I hope everything works out this time and Im not bothering you too much.
Thank you very much in advance.

Julie · 09-12-06, 07:01 PM

Here is a link to another method, which seems much simpler (I did not know about this method when I originally replied to this thread) which you might try:

http://h41206.www4.hp.com/webapps/IV...serverId=1#src

Originally Posted by Harry_S_Truman

1) When it really drains out (no soft reset powers it), I connect it to power source. As long as I don't have a craddle, do I have to connect it to my USB cable also?

I think it would be better to connect the IPAQ directly to AC power and not rely or any kind of USB charging - the IPAQ will charge much quicker this way.

Originally Posted by Harry_S_Truman

2) In this moment, I really have to wait for it to power itself up or can I power it manually when is charging? Those two times it was possible for my to power it up.

It is better to leave it off and alone while it is recharging. This will cause it to recharge quicker.

Originally Posted by Harry_S_Truman

3) What will be first? Welcome screen post-hard reset or calibration mode?

If it is turned off, you won't see the welcome screen until you turn it on again after the flashing amber light has become constant. Then you will see the welcome & alignment screen. From what I have read, the calibration piece happens at the very end of the charge and the IPAQ may turn on automatically.

Originally Posted by Harry_S_Truman

4)When the battery calibration should start? At the beginning of the charge or at the end (100%). Somewhere between?

As stated above the calibration happens at the very end after the battery has been recharged.

If your battery is completely flat, the backup battery will be flat too. It will take a while for your battery to charge and even after it appears to be fully charged, you should leave it on AC power for a couple more hours. This will allow the backup battery (which in many cases is recharged via the main battery) to also get fully charged.

imported_Harry_S_Truman · 01-20-07, 10:40 AM

Hi, Everyone.

Im trying again to calibrate the battery for my hx2110 (I left that for imposible at the time of previous posts), and now this is what I've done:

1) Replaced the original battery (920 Mah) for the new one (1500 Mah). The gauge of the ipaq showed a different amount of remaining battery.

2) Left the ipaq playing videos with TCPMP until it died. FYI: After the first film and a little more, the gauge was showing 0% battery left, without "system warning", I checked it out by myself.

3) Even with supposed 0% battery remaining, the ipaq played another time the same video (100 minutes) and again, half of it (Total 140-150 min).Then, it died.

4) With the battery dead, I left it alone for another 30hours (Standby time set to 24h).

5) Today, I start charging it hoping that the calibration prompt will show. By now, I have the PDA still charging. The gauge shows 99% and it has the green check on it (¿?), as it would be completely charged, but the led keeps blinking, it's still charging.

I remember the last time, when something similar happend, and freaked out, I unplugged the power source, then the pda thought it was 100% charged. When I plugged again the power source, the led blink twice and it was lit, stopped, as in "completely charged".

What should I do? Keep waiting for the LED to stop? It's something wrong? It's part of the process, for the PDA to realize that some info about the battery is messed up?

Thanks in advance.

Julie · 01-20-07, 11:19 AM

What I've read about it is that the last few percentages can take a bit of time. How long have you been charging?

julie

imported_Harry_S_Truman · 01-20-07, 11:23 AM

Hey, Julie, thanks.

Well, It has been 3:30 hours, just now the led it's not blinking, but the gauge at today screen keeps showing 99%, the green check sign and a little circle made of yellow pixels on it. What should I do now? Restart the unit?

There's no calibration notification still.

Thanks.