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 Post subject: Question concerning lithium-ion batteries for laptops
 Post Posted: Fri Jun 01, 2018 8:33 pm 
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Scott, do you think it would be a good idea for one to replace a laptop's lithium-ion battery after two or three years regardless of whether the battery is functional or not? Should one go by the battery's manufacture date?


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 Post subject: Re: Question concerning lithium-ion batteries for laptops
 Post Posted: Sat Jun 02, 2018 8:23 pm 
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No. One should go by the battery's performance. For example I just used the ThinkPad Power Manager to check my battery and here is the data it reports:

Image

As you can see this battery is over 7 years old, has over 500 cycles and has only lost about 14% of it's total capacity. Why would you throw away a potentially good battery based on some arbitrary amount of time? I would only replace a battery when the current full charge capacity falls well below the design capacity. In this case I might end up replacing the computer before I change the battery. Scott.


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 Post subject: Re: Question concerning lithium-ion batteries for laptops
 Post Posted: Sat Jun 02, 2018 8:48 pm 
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Well, Scott, is there software comparable to the ThinkPad Power Manager that can be used on an HP EliteBook 2540p with a Windows 7 Professional installation?


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 Post subject: Re: Question concerning lithium-ion batteries for laptops
 Post Posted: Sun Jun 03, 2018 7:53 am 
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I believe there is. Let me know what you find and how well it works. Scott.


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 Post subject: Re: Question concerning lithium-ion batteries for laptops
 Post Posted: Sun Jun 03, 2018 10:25 am 
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Scott, check out this piece.


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 Post subject: Re: Question concerning lithium-ion batteries for laptops
 Post Posted: Sun Jun 03, 2018 1:22 pm 
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When was it written? It looks to be quite old and out of date. Let me know what software you end up using. Scott.


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 Post subject: Re: Question concerning lithium-ion batteries for laptops
 Post Posted: Sun Jun 03, 2018 6:44 pm 
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Scott, I've come across this piece, which was written less than a year ago. Which piece of laptop-battery-testing software recommended in the piece appears to be the most comparable to the ThinkPad Power Manager? Perhaps it is BatteryInfoView, but...


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 Post subject: Re: Question concerning lithium-ion batteries for laptops
 Post Posted: Sun Jun 03, 2018 10:02 pm 
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Let me know what software you like and end up using after you test them all. Scott.


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 Post subject: Re: Question concerning lithium-ion batteries for laptops
 Post Posted: Sun Aug 19, 2018 3:33 pm 
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Scott, do Li-poly batteries deteriorate in a manner similar to Li-ion batteries?


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 Post subject: Re: Question concerning lithium-ion batteries for laptops
 Post Posted: Mon Aug 20, 2018 7:42 pm 
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What does your research show? Scott.


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 Post subject: Re: Question concerning lithium-ion batteries for laptops
 Post Posted: Tue Sep 25, 2018 1:05 pm 
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Scott, I've purchased a lithium-ion battery for the aforementioned HP EliteBook 2540p laptop that's supposed to arrive today or tonight. The price for the new battery is $19.99. However, the laptop's current battery might be good at the present time. Do you think I should bother returning the new battery? I do realize, of course, that lithium-ion batteries have a limited lifespan.


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 Post subject: Re: Question concerning lithium-ion batteries for laptops
 Post Posted: Tue Sep 25, 2018 8:41 pm 
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The last 9-cell (extended) battery I purchased for my ThinkPad cost $100 from ServerSupply and that was $70 less than the standard Lenovo price even though it was a proper Lenovo branded battery. That was in 2011, I'm still using it today and it is currently performing at 92% of original capacity while having 528 charge cycles. I'm impressed.

Let me know what you decide to do with your battery and why. Scott.


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 Post subject: Re: Question concerning lithium-ion batteries for laptops
 Post Posted: Tue Sep 25, 2018 10:16 pm 
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Scott, this is the battery I purchased. It didn't arrive today, and Amazon has been apologetic. It will now arrive tomorrow or Thursday.


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 Post subject: Re: Question concerning lithium-ion batteries for laptops
 Post Posted: Wed Sep 26, 2018 6:24 pm 
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Scott, I received the new battery today. It has a smaller capacity than the old battery. The new battery is physically smaller than the old battery. The old battery, a genuine HP battery, is rated at 93Wh. The new battery, which is not a genuine HP battery, is rated at 5200mAh/58Wh. With the new battery, I would need to use a laptop cooling pad. Keep in mind that the HP EliteBook 2540p isn't used all that often. I tend to use it when at least one person is staying in my older sister's old bedroom, which is where my usual desktop PC is located. I am certainly worried about battery deterioration, and I'm worried that I might not use the new battery often enough to justify the $19.99 that I paid for it. Scott, do you think I should keep the new battery? According to BatteryInfoView, the new battery was manufactured this year (2018).


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 Post subject: Re: Question concerning lithium-ion batteries for laptops
 Post Posted: Wed Sep 26, 2018 6:43 pm 
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Let me know what you decide and why. Scott.


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 Post subject: Lenovo Battery
 Post Posted: Fri Sep 28, 2018 9:08 am 
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The T420 Battery. Scott I know you like to order the stuff from Lenovo website. I was wondering if I was to order a new Battery for my T420 thinkpad how can I tell if it is fake or the real deal.


The computer saying I should replace this battery soon.

Thanks.

once again I thanks for the help in having a different point of view on SSD.
and also with the new caddy and the hard drive it nice not having the cd/dvd drive keep popping out all the time lol......................
I been doing stuff the old school.

take care
hope you got a new book computer coming soon and video.


Last edited by spiderman on Sat Sep 29, 2018 8:29 pm, edited 1 time in total.

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 Post subject: Re: Lenovo Battery
 Post Posted: Fri Sep 28, 2018 8:03 pm 
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I never ordered a battery from Lenovo. Scott.


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 Post subject: Re: Lenovo Battery
 Post Posted: Sat Sep 29, 2018 8:28 pm 
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Scott wrote:
I never ordered a battery from Lenovo. Scott.


Where do you order a battery from for a T420 thinkpad then.?


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 Post subject: Re: Question concerning lithium-ion batteries for laptops
 Post Posted: Sun Sep 30, 2018 1:42 am 
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You'll find the answer in what I posted above. Scott.


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 Post subject: Re: Question concerning lithium-ion batteries for laptops
 Post Posted: Sun Sep 30, 2018 8:39 pm 
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Scott wrote:
Let me know what you decide and why. Scott.


Scott, I decided to return the newly purchased Li-ion battery to Amazon. The old Li-ion battery is apparently still good. Also, I don't use the HP EliteBook 2540p laptop all that often. I have thought that maintaining the newly purchased battery would be too much hassle for me.


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 Post subject: Re: Question concerning lithium-ion batteries for laptops
 Post Posted: Mon Oct 01, 2018 11:11 pm 
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Scott, what if a laptop's battery indicator initially shows that the battery level is at 65% or so but later increases abruptly to 84% or so without actual charging?


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 Post subject: Re: Question concerning lithium-ion batteries for laptops
 Post Posted: Tue Oct 02, 2018 8:20 pm 
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Sounds like either an improperly designed or defective battery. Let me know what you find. Scott.


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 Post subject: Re: Question concerning lithium-ion batteries for laptops
 Post Posted: Tue Oct 02, 2018 8:32 pm 
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Scott wrote:
Sounds like either an improperly designed or defective battery. Let me know what you find. Scott.


In hindsight, it was apparently a mistake to return that one battery to Amazon.


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 Post subject: Re: Question concerning lithium-ion batteries for laptops
 Post Posted: Tue Oct 02, 2018 8:42 pm 
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The real mistake was buying it in the first place... <g> Scott.


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 Post subject: Re: Question concerning lithium-ion batteries for laptops
 Post Posted: Wed Oct 10, 2018 11:06 pm 
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Scott wrote:
The real mistake was buying it in the first place... <g> Scott.


Actually, Scott, it's the old Li-ion battery that seems to be defective.


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 Post subject: Re: Question concerning lithium-ion batteries for laptops
 Post Posted: Thu Oct 11, 2018 8:34 pm 
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So the original and replacement batteries were defective? That sucks. I've had great luck with ThinkPad batteries, which is just one of the many reasons I only use ThinkPad laptops. Scott.


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 Post subject: Re: Question concerning lithium-ion batteries for laptops
 Post Posted: Sun Oct 14, 2018 8:53 pm 
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Scott wrote:
So the original and replacement batteries were defective? That sucks. I've had great luck with ThinkPad batteries, which is just one of the many reasons I only use ThinkPad laptops. Scott.


Actually, Scott, the replacement battery wasn't defective. I didn't get a full refund because I told Amazon that I didn't need the battery anymore. However, Amazon did refund me about 70 percent of what I paid for that battery.


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