High capacity battery for Acer 3680 ?

I have an Acer 3680 which came with a 14 volt battery that is only 2000 mAh.

The laptop only gets about an hour an a half of battery life. The battery is quite small, doesn't stick out the back at all.

Does anyone know if they sell a higher capacity battery for this laptop? I have looked around but I can't seem to find one that is compatible. Some that say they are look like they have a different connector on them.

 

My friend bought the Aspire 3680 from walmart for 450 bucks his battery life is fine, but he got the most minimal options [though we are going to upgrade his RAM from 512-2GBS...Vista barely runs lol]
But go to your local radio shack, or similar, and ask them if they know of a 9-cell or larger battery that is compatible with the Aspire 3680, they will probably have to order it, and then ask them for a price on it. If you dont like their price... get the make and model no. from them and order it offline.

also you could try and save battery power through many tricks and tips and settings tweaks...
http://www.microsoft.com/atwork/stayconnected/battery.mspx
http://tech.yahoo.com/gd/conserving-your-laptop-s-power/153162

wen in doubt google it!
http://www.google.com/search?hl=en&q=Acer+3680+9-cell+battery&btnG=Google+Search

maybe this?
intelligent Battery Pack. This is a 9 cell Lithium Ion rechargeable battery designed for Acer Aspire 3030, 3050, 3200, 3600, 3680, 5030...
4,800 mAh
http://www.microcenter.com/single_product_results.phtml?product_id=0261037

hope this helps...

 

Well your friend probably doesn't have the 2000 mAh battery. Why don't you ask him? I bet he has the 4000 mAh version which is TWICE the capacity.

 

Just checked mine Hellbore. My 3680 came with 4000mah.

 

Pellpel, what's the model number and/or part number of you battery?

 

P/N: LIP6220QUPC SY6

Theres other numbers on there but I think their irrelevant.

 

I have the same problem as Hellbore. My Acer 3680 has a weak 2000mAh battery that only lasts about an hour and I am looking for something better. Looking on Ebay is extremely confusing because they list like its compatible with the 3680, but the part number they replace is different and some others list the wrong voltage. For instance, some batteries for the 3680 say they are 11.1V, but my battery says 14.8V. Also, in the list of part numbers they replace is not listed the part number of my battery which is 4UR18650Y-QC271. So what I don't understand is if the model number of the laptop matches, why are there incompatible batteries for it? And by what I read here, it seems like Acer makes different types of 3680 all with different battery sizes. I thought this was supposed to be a lot simpler.

All I want to know is what larger capacity battery can I use to replace the 4UR18650Y-QC271. Searching on Google has been fruitless.

Pellpel, I looked up your battery part number and it looks like you have a different type of 3680 because your battery is 11.1V, unlike mine which is 14.8V. See, this is what's frustrating about Acer. Why do they have different laptops with the same model number: 3680? How retarded is that?

Pellpel and Hellbore, what are your laptop's full model number? Mine is 3680-2682. I'm thinking we have different laptop models even though the number is still 3680. It just doesn't make sense that one uses one kind of battery and another one uses a different battery.

 

You are correct mine is 11.1v. My model is 3680-2633, its equipped with a weaker celeron, 1.6GHz, the 2682 has 1.86Ghz, that probably explains why it need the 1.4v battery. I'm sure that there are other little differences.

I think they only did that because their not ready or qualified to give it a new model name. Just like Dells, they have regular D630 or high performance of the D630.

 

I think you want an LCBTP03003.

If so, I have one that I mistakenly bought for my 3680-2682 and would be willing to let go of cheaply. Send me a PM if you are interested.

Back to the topic at large... It looks like Acer did a major redesign of the 3680 series at some point. I have a Service Manual PDF which is apparently based on a totally different design where, for instance, the optical drive is on the left rather than the right, the bottom cover has a different shape, etc.

I *think* the 14.4V batteries are physically larger and are from the older model while the 11.1V batteries are a bit shorter and are for the newer model.

Thoughts...
John

 

In that case, what most companies do is add a letter to the model number. Acer could do something like 3680a or something along those lines to avoid confusing customers. Cellphone manufacturers do this all the time: Motorola V3, V3i, V3m, V3x, etc..

 

Does that battery fit your 2682? By the pictures I see online for that model, it doesn't look like it fits because the connector is not near the center. My laptop has the connector near the center. Can you take a picture of your battery and post it here?

 

That is the battery (LCBTP03003) which does not fix y 2682 and which I purchased by mistake.

 

Deity! This is more confusing than I thought...

First of all, there appear to be at least two physical styles of batteries that claim to work with the Aspire 3680.

• One has a fairly uniform shape with the connector near the center.
  
• The other is slightly longer and deeper with a notched area at one end and a connector located closer to the notch than to the center. I think this is either an older-style battery or one that is used with Core Duo-based systems.

Second, there appear to be two different voltages: 11.1V and 14.8V. (Is there also a 14.4V battery being used?)

Finally, there are, of course, two different capacities: 2000maH and 4400maH.

Looking around on ebay, I've seen references to Acer part numbers BATEFL50L6C40 and BATEFL50L6C48, but they appear to be used somewhat indiscrimately.

My own system is an Aspire 3680-2682 (Celeron 440M). It came with a battery with part number LIP4110QUPC. This a center-connector battery, 14.8V, 2000maH.

On ebay, I've seen a number of supposedly 3680-compatible batteries, 4400maH, with the correct form factor, but all appear to be 11.1V (with one seller going so far as to say that they are not compatible with 14.8V systems).

As previously stated, I've already bought one wrong battery. That battery has the notched form factor, 14.8V, 4400maH and is available cheap to someone who can use it.

So some basic questions:

1. Do the Core Duo 3680s use a different battery from the Celeron M 3680s?
2. What distinguishes the systems that use an 11.1V battery from those that use a 14.8V battery?
3. Can a 14.8V system run on an 11.1V battery and what is the effect?
4. Does anyone have a hard set of battery part numbers?

Yours, in confusion...
John

 

How about sharing a part number, then?

When I look at your site, I only see the LCBTP03003, which is not compatible with a 3680-2682.

 

jruschme, you have just written the best, most detailed explanation of the problem so far. My hats off! I wish more people had your writing skills. My situation is exactly as yours, except that my battery model number is different than yours (yours is LIP4110QUPC, mine is 4UR18650Y-QC271), but still both our batteries are 2000mAh, 14.8V with the form factor having the connector near the center. I wish Acer had a better, more useful website to research these things.

I have been running into the same exact problems you described. The batteries that appear to physically fit the laptop are 11.1V (which is the wrong voltage), and the ones that have the right voltage are physically different so they won't fit the laptop. I also feel the same way about Ebay sellers. They seem to assume their batteries fit all varieties of 3680s.

I have another bit of information I found. I sent an email to www.laptopparts.com which claims to have a 9-cell battery that they claim works with the 3680-2682. The reason for my email was because once again I ran across a product with the wrong voltage (11.1V). So I asked them how come they claim the battery is compatible if the voltage listed doesn't match, and if it is really compatible, and this was their response to my email:

I don't know if this is true or not, but I am skeptical of this response. Here's the battery in question: http://www.laptoppartsnow.com/acas36selire10.html

Now, if you go to that URL, you will see the battery part numbers that their 9-cell battery can replace. Originally, when I saw the listing, my battery model number was NOT in that list. After I got a response from them, all the sudden I see my battery model listed in their website as a model they can replace. Seems strange that they added my battery model to their website only after I wrote them. Makes me wonder how many people run that company and how reliable are they.

 

Bobolito, thanks for the compliment.

I've sent an email to Acer support in the hope that they can shed some light on the situation. Unfortunately, it will be at least Monday in the US before I see an answer.

I have one ebay seller (allpower168) who insists that the 11.1V battery won't work in my system.

Like you, I take the comments from LaptopPartsNOW with a grain of salt. I suspect that the notebook will run with an 11.1V battery as it probably gets rectified down to 5V internally for most of the hardware. My bigger concern is that the power management might go into some sort of reduced functionality mode (i.e., similar to a discharged battery). The overhang on the 9-cell battery is pretty common, I've seen the same thing with high capacity batteries on Dell and Thinkpad systems.

Any battery experts out there who can shed some light on the subject?

 

I have another laptop from Dell (710m), and when I bought it about 2 yrs ago I got the largest capacity battery they offered, I think it's 8-cell, but it does give me about 3.5hrs now, and it used to give me 5 hours when it was new. It sticks out the back about an inch, but the well designed body makes this not a problem at all. In fact, it almost looks like a handle.

Let us know if you get an answer from Acer. Thanks...

 

I received a response from Acer regarding a high-capacity battery compatiblw with a 3680-2682:

A quick Google shows that it is a 14.8V, 4000maH battery compatible with the Aspire 3680. Unfortunately, no one seems to have a picture or only shows a "representative" picture.

John

 

Now I'm totally confused!

I took another look at the URL provided. One of the replacement part numbers is LC.BTP00.001 which, according to Acer, is the battery we want.

BTW, it appears that LC.BTP00.002 is the part nubmer for the 9-cell, 7200maH battery.

I've sent a reply to Tammi at Acer, specifically asking if the battery she mentioned is a 11.1V or 14.8V or if it even matters. We'll see what she has to say in our next chapter of the saga...

John

 

Wow! That was a very useful answer they gave you. [sarcasm] LOL! I had already found out that LC.BTP00.001 part number doing my own research on Acer's website. I wonder if that's all Tami Gray did to respond to your email.

I was doing a quick research on Google for part numbers LC.BTP00.002, LC.BTP01.006, BATEFL50L9C72, and BT.00903.007. They all appear to be 11.1V. However, there seems to be a small discrepancy, or should I say error in some Ebay listings with the BATEFL50L9C72 model. That's why we have to take everything they say on Ebay with a grain of salt. They say that this model is 6-cell and 4800mAh. But if you look at the part number closely, you can tell that the last 4 characters refer to how many cells the battery has and its capacity. For instance, 9C72 means that the battery has 9 cells and 7200mAh. There are other models from the same manufacturer (BATEFL50L6C48 and BATEFL50L6C40) which should be 6 cells and 4800mAh and 4000mAh respectively. They are all 11.1V and the all have the form factor that fits our laptops.

Check out this retailer: http://www.batteries-laptop.org/define.php?pid=812#

Anyway, let us know what they say.

 

So, I received an answer from Tammi regarding the voltage of the LC.BTP00.001:

Ironically, she does actually tell us the voltage.

Acording to this page:

Code:

watt = volt * amp

which can be restated as

Code:

volt = watt / amp

Now

Code:

Ah = mAh / 1000

Giving us

Code:

Ah = 4000 / 1000 = 4

Hmm... a 4 Amp battery, let's see...

Code:

volt = 44.4W / 4A = 11.1V

Gee... that number looks familiar!

Okay, so Acer is now telling us two totally contradictory things:

1. That the correct replacement battery for a 3680-2682 is 11.1V
2. That this is different from the original voltage and that voltage is supposed to matter.

The good news is that at least we understand where the basic confusion comes from... Acer itself.

FWIW, the original battery is 14.8V * 2A battery for a total of 29.6 W.

John

 

Well I suspect that the laptop's internal DC-DC power circuitry probably can handle 14v or 11v. The other battery is probably 11.1v due to differences in the configuration of the lithium ion cells themselves. The battery is made up of a bunch of lithium ion cells in series and / or parallel. Each cell usually has a 3.7v nominal voltage. Some cells have a higher mAh capacity than others, but they usually have a standard voltage. 11.1v usually corresponds to 3 lithium cells in series, but each of those 3 "cells" could actually be more than one cell in parallel. 14.8v corresponds usually to 4 cells.. If they say it is an 8 cell battery and it's 14.8 volts then they probably have 4 cell pairs wired in series, and each cell pair is 2 cells in parallel. A battery that says it is 9 cells is probably a series of 3 sub-cells, each of which is 3 cells in parallel? Just a guess anyway.

It would be interesting to disassemble the different packs and see what their cell geometry is.

It's probably most useful to look at the watt-hours rating of the battery pack, looking at the mAh alone without regard to voltage doesn't tell you the whole story. For example if you have a 1000 mAh pack and a 1200 mAh pack you might think the 1200 will last longer, but if the 1000 mAh pack is 14.8v and the 1200 mAh is 11.1v then the 1000 mAh pack will actually last longer.

 

I was thinking about that possibility too. Maybe a 14.8V 2000mAh battery lasts the same as an 11.1V 4000mAh.

 

No, in this case the 11.1V, 4000mAh battery should still last longer by about 50% (44.4Wh / 29.6Wh).

Based on your comments, I'd say the original battery is a 4-cell battery arranged in a 4x1 configuration with each cell having a 2Ah capacity.

The 11.1V, 4000mAh battery has equivalent cells arranged in a 3x2 configuration.

The high-capacity batteries apparently use a cell rated closer to 2400mAh (2.4Ah). As you would need a 3x3 configuration of those to get the 11.1V, 7200mAh, 9-cell battery mentioned earlier in this thread.