Question about HP iPAQ HX4700 Pocket PC

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Back battery bad

I have a hp iPAQ4700and need to know the number of the battery and how to change it

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There are two batteries. main and backup battery

the below video shows how to replace the backup battery, V6HR , of your hp ipaq hx4700

Posted on Mar 10, 2009


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2 Answers

I need an hp screen Compaq

no PC stated,!!!! not even a COMPAQ monitor or the word LAPTOP stated, 2 totally different boxes.

see lines 1,3,5? bingo
do you mean buy a new LCD screen BUY ????????
no answers are possible lacking this tag data. told.


Nov 29, 2017 | HP Computers & Internet

1 Answer

Compaq Presario CQ61 will not start. Have removed battery and tried to start with just power cord. Nothing happens. If battery is installed the led with the lighting bolt will flash but laptop still will...

nothing happens, I will take that as no text shows on the screen
at boot (power button on ) time as it did for

CQ61 is not the full model number making accurate answers x10 harder. for any helper, who knows HP gear.
forget that huge battery, no laptop needs it to run on AC power.
most batteries this old are bad. same with the RCT/CMOS coin cell in side. page 55 shows how to replace IT.

The big battery is ALWAYS fix last DEAL. ok?
the blacks screens are 1st always, to diagnose them first.
ill pretend you said CQ61-100 (not 200,300. and so on)
looks like it was made in 2009 .
for 8 long years , you pushed power and saw
"Press the ESC key for Startup Menu" text,
but today, you see 'NOTHING" (nothing is nothing)
does the fan inside blow air and heard ? if not the AC pack is bad.
(wall AC >>>>Pack>>>>19vdc-to-PC)
so that is the black screen of deathh(sic) I call it.
so if the power pack is still good, we do the flash light test.
ever heard of CCFL back lamps, they ended in 2010
(see why my wanting real model numbers matter?)
if it has ccfl lamps they all fail about NOW.
the flash light test.

the black screens of ***** list is here. and tests.
it has many causes. the ABOVE OR top CAUSES. ONLY
THE GOAL IS BIOS SCREENS. "esc" key BIOS is first
the cause of those are . here, 14 steps
remove power pack, and AC pack
push power button, for 10 to 30 seconds this is the HP
magic RESET, (its harmless)
AC PACK back in place. and to wall power hot.(means live power)
NEXT , if the fan works.!
if the fan does not work (say so please) and we can work that FIRST.!!! (in truth fan is first, it must blow )
ever clean out 9 years of lint inside? service it?

most CCFL were in fact inside Old C61 PCs.

see this? (this os folks changing them over and over)

They ended these junky CCFL in 2010, phase out.
a key year to not buy PCs older that that Laptops.

Nov 27, 2017 | HP Compaq Presario C500t Notebook

2 Answers

My hp series HSTNN-105C won't turn on, but the lights that mean it is getting power from the charger is on, does anyone know how to fix this? if so, then what part do i need to replace, or do i ev

HP HSTNN-105C is a Laptop Battery,

Look on the bottom of the laptop, and in the white Service Tag.
Give me the Product Number. (P/N)

S/N = Serial Number. Do NOT give out on a public forum. ONLY to authorized HP dealers, and repair shops ]

According to the website in the link above, this battery may fit;
HP Compaq NC6000 series, NC6120 series, NC6220 series, NC6400 series, NX6100 series, 6710B series, and 6910P series of Notebook PC's.

IF the above holds true there is NO panel to simply just remove, and you have access to the CMOS Battery. (Also referred to as RTC Battery. Real Time Clock Battery)

You MAY have to completely disassemble the laptop down to the motherboard in your hand. The CMOS battery is located on the Bottom of the motherboard.

HP Compaq NX6110 series is different. With these type of models the Keyboard is removed, to gain access to the RTC battery,

The above is in Spanish, and you are on Page 2. (Parte 2)
Posted for the photos.
Scroll the page down, and look at the second, third, fourth, and fifth photos.

The CMOS (RTC) Battery is the round silvery looking object, with the red wire attached.

There is a PROPER procedure for removing the RTC Battery. It isn't just remove the Keyboard, and replace the Battery.

1) ALL power is removed first. Remove the AC adapter (Charger) and Battery.
(Main battery)

2) FOLLOW Anti-Static Precautions. Static shock your laptop, and you will have an expensive doorstop, or paperweight.

3) The Keyboard does NOT have to be removed all the way.

Once you post what Product Number you have, I can give you detailed information.

Before we begin;
I would like you to attach an external VGA monitor, and see if the display is OK on it.

1) Laptop OFF, monitor OFF. Attach a VGA monitor to the VGA port on the laptop.
Do not know what HP Compaq laptop you have, can't give you detailed info of where your VGA connector (Port) is on your laptop.

This is an example of a VGA connector, and a VGA cable,

External VGA monitor:
You can use a CRT monitor, (Looks like a small TV), or a flat LCD screen monitor that has a VGA cable.

2) Monitor attached turn it on. If a CRT type allow it to warm up.
Turn the laptop on.

By default the display should show on the external VGA monitor.
There are however at least 3 display options;

A) Laptop internal monitor ONLY
B) Laptop internal monitor AND external VGA monitor
C) External VGA monitor ONLY

Press, and hold down on the Fn key. At the same time tap once on the Display Toggle-Over key.

Which one is it? It is one of the F keys at the top of the Keyboard.
F2, F3, F4, F5, and so on. It will have a monitor symbol on it, and a second one connected to it.
(GENERALLY, it is the F4 key for HP laptops. That is GENERALLY )

Tap once and no display on external monitor?
Hold the Fn key down again, and tap again on the Display Toggle-Over key.

It could be the laptop IS working, but there is a component, or components, that are bad for the internal monitor of the laptop.
Display doesn't show on laptop's LCD screen.

Could be something as simple as a bad connection of the Video Cable to the motherboard, or to the back of the LCD screen.

Could be a bad Video Cable.

Could be a bad screen Inverter.

Could be a bad Backlight.
For the above; a simple test,

Laptop on use a flashlight, and aim it at the LCD screen of the laptop.
Shine the flashlight at various angles.
Tell me what you see.

An LCD screen does not produce light. It needs an additional light source.
A Backlight is the additional light source.

A Backlight can be a CCFL, or series of LED lights. (Present technology)

A CCFL is a Cold Cathode Fluorescent Lamp.
Similar to Fluorescent lighting used in homes, and businesses, but on a MUCH smaller scale.
(Average size is 2mm Thick, and almost as long as the LCD screen is high.
2mm is a Little more than 1/16th of an Inch, or about the width of this letter -
N )

Post back in a Comment.


Apr 09, 2012 | HP Computers & Internet

2 Answers

My wireless mouse has quit working. I'm guessing I need a new battery. However, I can't figure out how to even find the battery, let alone change it! How do I do that????

Cutting down on the number of wires that must be tolerated in a work station adds to maneuverability and ease of location. For all their convenience, though, wireless accessories bring with them a number of issues not present in their wired counterparts, most significantly battery change.

    • 1 Turn off the mouse.
    • 2 Remove the top of the top of the battery compartment. The button that releases it is located toward the rear of the mouse.
    • 3 Remove the old battery and place the new one in its place. Replace the cover and turn the mouse back on.

Read more: How to Replace the Batteries in an HP Wireless Mouse '

May 09, 2011 | HP Wireless Optical Mouse

3 Answers

I have a HP dv6449us with Nvidia, etc. My lcd screen began flickering with rapid horizontal lines and then went black. At restart in indirect light I can faintly see the HP logo and bottom tray, but...

first step on all LT is to remove the main battery. off bottom with latches.
then the LT runs on AC power , endlessly and no dim screens.
any LT thinks its running on battery only, it goes to dim mode.
NO OS stated, by you, XP./vista,w7/8/10?
lines, are not a good sign, is this a 2008 laptop with the infamous
solder-balls from H3LL, Nvidia failures. here lets look that up.
seems yes, year 2007 stamped clear as day in the service manual (Free) at (aka, lead-free *****,etc)

so do this, run on AC only.
then, twist the bottom case then the screen case.
UN-nuturally, if lines change (add or subtract) it's a bad GPU or screen.
gently, do that, takes only gentle forces and is common failure.
test 3 is push the J key harder, like 5 lb ham on back of hand hard. screen changes? this is to get stress on the GPU, my be a waste of time, no 2 lapstops the same on lay out. even different by sub models, same name and number.

since i cant see your lines, and make great advice, above is wild guess on what you saw not me.
so,, if lines means, its only DIM ? then that is another answer
lets do DIM only.......
battery out main, ok? leave it out, so AC is the only powser
so the I Have full power logic runs it at full brightness.
and the brightness button actually works.

ever heard of CCFL. Back lamps.
the all die, everyone, for sure this old. 7 years old.
if used allot for sure. it's not LED black lamps here, understand that, the back lamps that last for ever are not HERE.
they (CCFL) go dim, go yellow(all do) and go intermittent or dead.
some even strobe,(flicker just before the END)
all do. every one. after about 20k hours used(adds up easy)
10 hr/day x 5.5 year is that, yours is 7 .

99% tubes bad. stats.
1% inverter bad, or both.
the inverter takes, low voltage and makes about 500vdc
for the tubes to run.

if you had photos of BAD, answers get x10 more easy.

Dec 24, 2017 | HP Pavilion DV6449US Notebook

1 Answer


Suspect the battery needs replacing as it should only change color when the battery has reached full charge. For the yellow to stay on it indicates either a fault battery or the way the battery is reporting it's condition. Check HP website for your battery number for recalls or issues.

Dec 18, 2009 | HP 530 Notebook PC

2 Answers

Need to change battery
This is a link to the owner's manual. It shows pictures of the laptop and where the battery is located. Probably easy to find a replacement battery on or elsewhere. The battery should have a number on it for reordering or you can find one at

Oct 01, 2009 | HP Compaq Presario 2200 Notebook

2 Answers

Date resets back to 2001 after being powered off

Try changing the time and date in the BIOS and then save the changes and exit. Then turn the computer off.

Wait a few minutes then turn the computer back on and if the date resets back to 2001 then that means the battery on the motherboard is bad and would need to be replaced cause that means the BIOS isn't keeping information in memory.

The battery you would need is a cr2032 battery. Here is an enlarged image of the battery Im talking about:

Aug 08, 2009 | HP Computers & Internet

2 Answers

I have an HP DV6426us. Last night I accidentally unplugged the AC adapter. I immediately plugged it back in, but the blue light on the DC jack wouldn't come on. I have also had a problem where the power...

You need to replace the battery asap. The battery is equipped with power mosfet connected to battery. pull the battery on the bottom of your laptop. There is a button on battery that you can check if the battery is charging. if no..,change it.

Jul 24, 2009 | HP Pavilion dv6426us Notebook

1 Answer

HP Pavillion zd8000

Ok the lines on the moniter means it is a bad screen that must be replaced and battery not working could be a few things it may be a bad battery or bad charging circuit to test this you can try charging another battery in your laptop and if it works it was the battery if not it might be the charging circuit.

Dec 04, 2008 | HP Pavilion zd8000 Notebook

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