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Windows 7: Laptop does not recognize non-OEM replacement battery

17 Jun 2012   #1

Windows 7 Home Premium 64bit
 
 
Laptop does not recognize non-OEM replacement battery

Prologue:
Good day to you all and thank you for the opportunity to join your online community.
The following text is the culmination of information from a failed attempt to get qualified advice via the Yahoo Answers route. This is why the text is not in a strictly narrative form. I thought it best to provide the accumulated data as is:
-----
I recently purchased a replacement battery for my Acer laptop (Acer Aspire 7740-5029). The battery is not a "manufacturer" replacement battery, but is of third-party manufacture. When I turn on my laptop (windows 7 HP 64bit), the laptop does not recognize that the [new] battery is inserted, even though the new battery is inserted. The laptop does function with the replacement battery, but it does not report to Windows the remaining charge, or even that the battery is even there. So, this being the case, I have no idea of the charge/time remaining as I use the laptop and is of no use to me because of that fact.

Technical information:
*The factory battery (OEM) is a Sanyo AS07B31 (lithium Ion, 4400mAh, 48Wh, 10.8V, 6 cell).
*The replacement battery is a Famis FAM18674 (Lithium Ion, 5200mAh, 49Wh, 14.8V, 8 cell)

Additional Details:
For anyone who advises that I seek out and download/update drivers for the new battery, I cannot "download the driver", since in the Device Manager does not even recognize the new battery as being there as an unknown device or otherwise. I cannot update or install a driver for device that Windows doesn't know is even there.

Additional Details:
One other person has submitted that the original battery that came withthe laptop contained DRM electronics, so that one cannot replace the OEM battery with a non OEM model.

Additional Details
The battery status/plugged-in status icon is on the taskbar and is not hidden. I have always had my taskbar set up to show all icons and to hide none of them. With the laptop not plugged into the AC and the new battery in place, the only icon that is showing is the "no battery detected" icon. Even though the laptop is drawing power from the battery, Windows does not "see" that there is a battery and therefore cannot provide battery usage/time remaining, etc.
-----
Epilogue:
I do very much thank you for your time in reading through this jumble of information and I do most heartily thank you in advance for any advice or commentary you may have to offer.
Regards,
pdw98

My System SpecsSystem Spec
.

17 Jun 2012   #2

Microsoft Community Contributor Award Recipient

Windows 7 64 Bit Home Premium SP1
 
 

Quote   Quote: Originally Posted by pdw98 View Post

Technical information:
*The factory battery (OEM) is a Sanyo AS07B31 (lithium Ion, 4400mAh, 48Wh, 10.8V, 6 cell).
*The replacement battery is a Famis FAM18674 (Lithium Ion, 5200mAh, 49Wh, 14.8V, 8 cell)
There is your problem right there. Wrong voltage.
The voltage must be the same to be a replacement battery for your laptop.
My System SpecsSystem Spec
18 Jun 2012   #3

Windows 7 Home Premium 64bit
 
 

Dear Sir, I had not considered the difference in voltage between the two batteries to be of any consequence, as I thought that the higher voltage had something to do with the higher capacity of the new battery and the fact that it is an 9 cell vs a 6 cell. I profess that little do I know of these things. Can the difference in voltage make so much of a difference that my laptop doesn't "see" that the non-OEM is inserted? Interesting.

On another note, I have contacted the seller of this troublesome non-OEM battery and he gave me several troubleshooting ideas. The seller's email to me is as follows [My commentary on each of the seller's advice is emboldened]:
-----
Hi!

What is your order number and name
it must be just some setting adjustment in battery meter Icon
because if windows 7 does not detect it then it does not even work in the laptop

here are some troubleshoot instructions
It is brand new battery.
Here are couple of troubleshooting tips. Please make sure to read the problems marked as (very common problem)

New Bios
=======
Please make sure you have an upto date bios. The battery which we sold you it is brand new battery with new chip inside. Mostly new chips require new bios which is available free from laptop manufacturer website. Visit your laptop manufacturer website, select product support. Select laptop model, download bios and download and install it. Restart Computer.
[I have done this. Flashed the BIOS from v1.15 to the latest v 1.27]

Calibration
===========
Also calibrate the battery. Go to Power settings in Power management in Control Panel, Disable sleep mode and hibernate mode and charge and discharge battery. Make sure it should not auto shutdown, hibernate before it reach zero percent. Please do it twice. Battery has chip and cells inside, they should have equal level. If cell is 50%charge and Chip has value of 100% it will not go beyond 50% unless both are calibrated.
Battery needs to be drained fully (bypass sleep mode, hibernate mode). Charge it again. Repeat the cycle.
[I am in the process of doing this. I will update as I progress this task]

Update: The new battery seems to not be able to hold a charge now. Perhaps a defective battery? Perhaps the OEM AC adapter cannot supply the higher capacity battery with enough power to hold a charge?
Connector

========
Since these are replacement batteries, you might need to press little bit so that it fits in. Make sure all the connectors on battery and laptop are straight.
[Connector works properly with the OEM battery and the newer OEM battery as well]

Good Ac Adapter
==============
Ac adapter have two circuits, one for booting computer and one for charging the battery.
Some adapter for dell have PIN in the middle of tip of ac adapter, if it is broken or loose it will no charge battery.
Further if it is old model 65w or 90w ac adapter which is not compatible with high capacity battery, it will not charge 9 cell high capacity battery.
Therefore, Ac adapter should be 100% good and genuine.
Some generic off brand Adapters are faulty that only boot the computer and does not charge the battery
[The AC power connector is OEM and is rated at 65w. Could this be an issue?]

Bad Ac adapter (very common problem)
=============
Further, Laptop Should turnon on AC Power (power supply/adapter/charger) while battery is not in the computer.
You need to fix it otherwise you can only drain the battery and not recharge the battery once it is drained.
If you can not turn on the computer on AC ADAPTER, it means ac adapter or DC JACK is bad and not the battery.
[This advice I didn't comprehend very well. Is it just me?]

DC JACK Problem (very common problem)
=============
The adapter connects to your laptop through a little power jack called DC Jack. It is the hole on the back of computer where you insert the tip of adapter.
It is is loose or broken, you probably noticed that you have to Wiggle the adapter cable near the DC jack gently while it is connected to the computer and a wall outlet.
If you see the light on the adapter go off periodically or when you move the wire in a certain way, then you have defective DC JACK. You need to fix it otherwise you can only drain the battery and not recharge the battery once it is drained.

If you can not turn on the computer on AC ADAPTER, it means ac adapter or DC JACK is bad and not the battery.
[I have directly observed that this particular advice does not apply to my AC adapter]

Above should resolve problem.
If above does not resolve it, please reply back
thanks
-----

Thank you in advance for advice and or commentary that anyone in this thread has to offer.
Regards,
Pdw98
My System SpecsSystem Spec
.


18 Jun 2012   #4

Microsoft Community Contributor Award Recipient

Windows 7 64 Bit Home Premium SP1
 
 

You want to contact the seller and inform them that you need to replace the battery they sent for a 10.8v one. This is their error and they need to replace the battery without cost to you.

You are fortunate that laptops have protective circuitry that guards against over voltage. It works like a circuit breaker in a house. It will just cut off the battery from the system. Otherwise you may have damaged the laptop.

New BIOS:
I had a chuckle over that one. I'm glad your BIOS flash went well. Flashing a BIOS is serious and should only be done for good reason. This was not one of them.

Calibration:
If the laptop cannot "see" the battery, how can you calibrate it?
You are not calibrating the physical battery, you are calibrating Windows battery meter to the battery. This is only affects the battery meter in Windows, it does nothing to make the battery work with your hardware.

Good AC Adapter:
Wrong again. The circuitry to switch from battery power and/or charging to direct power via the AC adapter is inside the laptop, not in the AC Adapter. The AC adapter is a "dumb" device. It can only do one thing.

Bad AC Adapter.
True. You should be able to completely remove the battery from the laptop and run it on the AC Adapter only. If you can't, there is a problem with the AC Adapter, or the switching circuitry inside the laptop.

DC Jack:
There are several different types of DC Jacks used on different manufacturer's AC Adapters. It is very important when replacing an AC Adapter to get one that has the same Jack. A broken or wrong size Jack can cause power/recharging problems. So they got that right.
But you are still using your original AC Adapter, no?

They sold you an incorrect battery. Now they are running you in circles. It is time to get tough with them.
My System SpecsSystem Spec
16 Mar 2013   #5

win 7 64 bit / Win 8 64 bit
 
 

There is a widespread problem with windows 7 and the non OEM batteries not detecting. If your battery will not detect, follow these instructions, and this is a proven fix. If it does not fix, then the issue lies somewhere else.

1) Disconnect AC
2) Shutdown
3) Remove battery
4) Connect AC
5) Startup
6) Under the Batteries category, right-click the Microsoft ACPI Compliant Control Method Battery listing, and select Uninstall. Do this for each instance (I had 2 batteries installed, so 2 instances. Most users will only have 1).
7) Shutdown
8) Disconnect AC
9) Insert battery
10) Connect AC
11) Startup
Hopefully, this will work for others!!!
My System SpecsSystem Spec
17 Mar 2013   #6

W7 X-64 W8.1 X-64 Opensuse 13.1 W2003 Server
 
 

Hi there.
Using generic mains adapters for PC's which are generally around 17.5 - 20V will usually be OK since the circuitry in the computer will adjust for the correct operating voltage when using a mains adapter. So most generic types with the correct positive and negative pins will work. There's usually a DC-DC inverter in the (Computer) circuitry to ensure the correct voltage.

On Battery the voltage must be correct otherwise the power required to drive the computer will be incorrect (apart from other circuitry considerations) as well as the Internal resisiance will be wrong. There's no DC-DC inverter circuitry in the battery part (or not normally).

Simply Ohms law Voltage = Current / Resistance. To get proper current out of the battery usually an Engineering principle is used -- Maximum power transfer takes place when the Internal resistance of the source = resistance of the LOAD (which is the computer).

All these numbers are hosed up when a wrong voltage battery is being used -- lucky too that nothing else is broken.

I remember seeing Aircraft Crash Confidential series (on Nat Geographic channel --one of the better TV channels) where an almost identical altimeter with the same fixtures was fitted to the WRONG version of the plane -- a model something 50 of a plane instead of the Model 80 of the plane --can't remember what the plane actually was but the models were very similar except the 80 had more seats and could carry a bigger load.

Of course on the GROUND the altimeter passed the engineering inspection tests -- but in flight it gave the wrong readings to the Pilot - with the inevitable consequences.

If you use "3rd party" components - always check the spec is identical to the original -- I often use 3rd party printer inks - so there's no harm in sourcing cheaper components but ensure they meet the spec of your gear.

If all else fails and you can't change the battery for a proper one --don't throw it away as you could rig up your machine to use that battery as an external power source - but the voltage might just be too low for that. Simply enclose in a box and solder on from the + and - ends leads to a similar plug that goes into the computer when using a mains adapter -- it's usually a round small rod with a solid pin in the middle -- careful with the correct polarity -- ensure + and - ends are wired correctly.

Cheers
jimbo
My System SpecsSystem Spec
18 Dec 2013   #7

Windows 7 Enterprise 32 bit
 
 

bayvalleystar


Quote:
There is a widespread problem with windows 7 and the non OEM batteries not detecting. If your battery will not detect, follow these instructions, and this is a proven fix. If it does not fix, then the issue lies somewhere else.

1) Disconnect AC
2) Shutdown
3) Remove battery
4) Connect AC
5) Startup
6) Under the Batteries category, right-click the Microsoft ACPI Compliant Control Method Battery listing, and select Uninstall. Do this for each instance (I had 2 batteries installed, so 2 instances. Most users will only have 1).
7) Shutdown
8) Disconnect AC
9) Insert battery
10) Connect AC
11) Startup
Hopefully, this will work for others!!!
Hi, I followed your instructions and it works except for one small problem - When my Gf's Lenovo 3000 V100 wakes from sleep or hibernation, I have to start all over again - Do you have a solution for this? I have searched up and down the net for a solution - until now I have had to disable the sleep/hibernation feature. I tried updating bios and drivers, SFC /Scannow, and most of the tips I could find online.

Hope you can help

With kind regards

JBJ
My System SpecsSystem Spec
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 Laptop does not recognize non-OEM replacement battery




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