Battery capacity very low

Hello,
I removed the battery and used the power socket only, then when I replaced it back it is not recognized any more.
Product Name: Pavilion dv4
Operating System: Windows 7 64-bit.
Error message: Battery capacity very low, this message appears before the windows starts.
Could you please help me with this issue?
THank you very much.

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Battery capacity very low, despite careful use and maintenence

Hello,
The current battery capacity of my MacBook Pro seems to be diminishing rather swiftly. I bought my Mac around 4 months ago, and have been using it for less than 3 months. I try to run Battery Calibration often (sometimes many times in a row, just because the situation allows for it), and I have never started charging it until it has went into standby due to low power. I tend to use it when running on battery, though I do occasionally keep the power-cord plugged in when fully charged.
The problem is, my overall battery life is down to 93% of the original, only with 63 loadcycles. That's not the worst part - it has recently been going down even quicker then before when 98% or so worried me.
I have kept a log of the life of my battery using CoconutBattery, it is as follows (in order from earliest to most recent):
98 % (5440 mAh) 2007-09-06
99 % (5464 mAh) 2007-09-09
98 % (5410 mAh) 2007-09-10
98 % (5440 mAh) 2007-09-12
98 % (5444 mAh) 2007-09-13
99 % (5450 mAh) 2007-09-13
99 % (5450 mAh) 2007-09-15
99 % (5463 mAh) 2007-09-15
98 % (5420 mAh) 2007-09-17
98 % (5429 mAh) 2007-09-19
98 % (5443 mAh) 2007-09-21
98 % (5392 mAh) 2007-09-21
97 % (5387 mAh) 2007-09-22
97 % (5360 mAh) 2007-09-26
97 % (5352 mAh) 2007-10-01
97 % (5387 mAh) 2007-10-04
100 % (5544 mAh) 2007-10-15
97 % (5339 mAh) 2007-10-16
96 % (5292 mAh) 2007-10-17
98 % (5437 mAh) 2007-10-19
95 % (5242 mAh) 2007-10-21
93 % (5143 mAh) 2007-10-23
Why are there so many jumps in percent, both up and down? How can I improve on my battery capacity? Can I anyhow make it increase back to the full 100%?
Is it better to keep it plugged-in or use the battery? Is the OK to charge it often?
Thank you for your time. I hope you can help!
Rudi

It doesn't say that on the apple site!
You're right, it doesn't. It in fact actually implies the opposite…
"Standard Maintenance
For proper maintenance of a lithium-based battery, it’s important to keep the electrons in it moving occasionally. Apple does not recommend leaving your portable plugged in all the time. An ideal use would be a commuter who uses her MacBook Pro on the train, then plugs it in at the office to charge. This keeps the battery juices flowing. If on the other hand, you use a desktop computer at work, and save a notebook for infrequent travel, Apple recommends charging and discharging its battery at least once per month."
http://www.apple.com/batteries/notebooks.html
Thing is, this text is aimed at those that rarely use their batteries as opposed to that those that do given that with regular battery use you're already doing the right thing.
Additionally, by regularly using your battery the function a calibration is actually relegated to a way of accurate reporting. Over time the cells degrade and the battery's circuitry as well as your MBP's SMC gets out of sync with this which results in incorrect battery run time figures. In the worst case this irregularity can result in your MBP shutting off without warning as it thinks it has more power than it really does. Calibration just lines this all back up again.
This does not mean you shouldn't calibrate but to do it only every now and then. I have an iCal to-do item to do it after 6 weeks from the last one although it can actually mean I don't do it for 8-10 weeks.
maybe change the battery - if so, will I still be able to purchase a new battery for my current SR model? Or should I buy one and keep it in stock now?
Assuming Apple changes the MBP battery on it's next revision you'll still be able to purchase new batteries for your MBP. While they don't make then indefinitely they won't leave us high and dry without a source of new batteries even after a line is not longer current.
Buying new batery is not recommended until you actually need it as Li based batteries degrade from the time they're made so the newer the stock the better.

Primary (internal battery) 601 very low how to correct this

Primary (internal battery) 601 very low how to correct this my model no is HP pavilion g4 its g series

Hi,
Pleae try the following test. If failed you have to replace the battery (the main, big battery which powers the laptop):
http://h10025.www1.hp.com/ewfrf/wc/document?cc=us&lc=en&docname=c00821536
Regards.
BH
**Click the KUDOS thumb up on the left to say 'Thanks'**
Make it easier for other people to find solutions by marking a Reply 'Accept as Solution' if it solves your problem.

I cannot connect to the internet. my i touch tries to log me on as a guest. We have our on wi fii. This started when my battery ran very low and I recharged it.

I cannot connect to the internet. my i touch tries to log me on as a guest. We have our on wi fii. This started when my battery ran very low and I recharged it.

Try:
- Resetting the iPOd. Noting will be lost.
Reset iPod touch: Press and hold the On/Off Sleep/Wake button and the Home
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- Power off and then back on your router.
- Reset network settings: Setings>General>Reset>Reset Network Settings

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this is from my macbook pro 13 2012
Battery Information:
Model Information:
Serial Number:    W01514DA5D3LA
Manufacturer:    SMP
Device Name:    bq20z451
Pack Lot Code:    0
PCB Lot Code:    0
Firmware Version:    201
Hardware Revision:    000a
Cell Revision:    165
Charge Information:
Charge Remaining (mAh):    4770
Fully Charged:    Yes
Charging:    No
Full Charge Capacity (mAh):    4828
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I've noticed my 9cell battery max capacity reported by Power Manager gets lower each day. I don't remember if it started with designed 93 Wh, but it's now at 90.98Wh and was 90.99Wh 2 days ago. Laptop is in use every day and it is recharged every day.
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Hi toncijukic!
Yes, lithium-ion batteries lose capacity over time. To maximize the life of the battery, follow the advice in this knowledgebase article:
http://forums.lenovo.com/t5/Welcome-FAQs-Knowledge-Base/How-can-I-increase-battery-life/ta-p/244800
Hope this helps!
I don't work for Lenovo. I'm a crazy volunteer!

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How do I make my battery life longer?

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Battery Capacity took a hit???

So it was normal day, and i went to calibrate my MBP battery, for i havent done it in a while. When it was done, all at 100% i checked the battery capacity, and it dropped a ton. Before calibration was around 5500mAh, now:
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Battery Installed: Yes
First low level warning: No
Full Charge Capacity (mAh): 4692
Remaining Capacity (mAh): 4294
Amperage (mA): -1623
Voltage (mV): 11986
Cycle Count: 27
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It hasn't done the drop in one day. It's done it progressively between the previous calibration and your most recent calibration. It's like when the electric company meter read comes to see your meter. It's not as you used all that electricity in the one day. The calibration is to align the computer presumed battery capacity with the real capacity.
However, your actual battery capacity seems lower than it should be. I would give it a week and try recalibrating… and be sure to let it sit in forced sleep for the minimum of 5 hours.

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My iphone 4S only start whit cable plug in and then show battery very low (with red line end) then try to turn on but show searching in operator name command and not connecting and no work properly and when I plug out it turn off!!! what should I do?

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But Apple will not service the phone anymore, opening the phone and replacing the battery should only be done by authorized personal, not by users.
You'll have to look for a 3rd party repair shop and see if they can fix this, sorry.

''Well When i plug in my ipod touch the battery life is low..i let it sit a wyhle.And it starts up to the apple logo and it stay there some time then it restartsback over to the very low battery and repeat(Over&Over)?

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Hello. I am having troble to start my ipod classic 5 generation. The message "please wait very low battery" (with an ipod with sad face) appears but the weird thing is that i just used it yesterday and i left it fully charged...but well. Then i try to charge the battery with a wall charger but it starts on a loop passing from the black screen with the apple logo, then it goes to the message "go to itunes/ipod/support" web site. and then it says again "please wait very low battery" just for a second and then it goes back to the black screen with apple logo and does this again and again. Then i tried to connect my ipod to the computer, after i do this it shows the message "please wait very low battery" and stays like this forever. I have tried ALL the suggestions, from trying to restart the ipod by clicking the middle button and the menu button at the same time (several times) and then clicking the middle button and the play button so it gows to the disk ode and nothing. I tryed witting it on the right corner and nothing. I already tested 3 usb different cables and nothing. It is not my usb port (i made tests with an ipod touch i have and works fine). Daaaaaaaaaarn!!! I really dont know waht to do now.
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Have you seen these articles?
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Also, here's s very good post about the sad iPod icon and/or exclamation point and folder:
Mitch: Exclamation point and folder and nothing else!
-Kylene

Battery capacity very low

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