Aspire 7535 Battery`

Hey there again.

I'm looking to get a new battery for my laptop, an Aspire 7535. I'm sure most of you know for this computer the batteries are not exactly super lengthy, going for 2-3 hours. So my question is which battery would best be suited for my computer? I know the battery model (by looking at it) is AS07B31, a 11.1V 4400mhA 6cell.

How come I cannot buy one of the much better 14.8V 5200 8cell batteries with the same AS07B31?? Is this just a sizing function? So this battery would definitely work, because it is the same one. Amazon.com: Acer AS07B31 Battery 11.1V

However on this website Another battery, 11.1V it says the same battery model number, but does not specify it is compatible with the Aspire 7535 (the before and after models, but not this) and I would really want a battery like this one.

And again, 14.8V, 8 Cell this is also a battery I would want but I have heard it is bad to mix voltages. However down below in the list it specifies it will work with my Aspire 7535. However my laptop is an 11V naturally but I would think the model number of the computer itself should take care of any discrepencies.

Basically I am looking for help to get the longest running best battery for my Aspire 7535-(5415?? I think), not the higher end G one. I have the 3200 radeon integrated chip. I know my normal battery gives 48000mWh and I run at about 22000 mW when I'm watching videos and streaming. However for class I run at around 17000 which is very nice, I get through three classes before needing a charge. However this was in the past, it has since degraded to 27683mWh (battery software), a battery wear of 43.3% I don't much care for running high-end stuff. Also is there not softwares for which voltages may be toyed with, allowing me to let different voltage-batteries comply?


Cheers! Sorry it is a long post, but I wanted to fill in the details.


Edit: Forgot to mention that in my manual it does say 3.36kg with one HDD and 8-cell battery, or 3.25kg with one HDD and 6-cell battery. It also does NOT have the ** beside it for specific models. However under it, it does say in Power subsystem 71 W 4800 mAH * and 48.8 W 4400 mAH* (mine)

 

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Because the computer designed for 11.1V will be blown if loaded with 14.8V. This particular model can accept 6 cell 11.1V battery, but not 8 cell 14.8V.

Now the good news. 11.1V 4400mAh is based on six 3.7V 2200mAh 18650 cells. There are Panasonic 2900mAh cells now so it is possible to rebuild the battery to 11.1V 5800mAh. Sanyo might have something even higher. However, I have not done this so cannot offer more detail.

 

I don't think that's the case. Read here for more information.

 

I hope he was right otherwise the computer will be blown. AIAIK, very few notebooks accept multi-voltage batteries.

 

He was. Almost all notebooks have different voltage coming from PSU (mostly 19V) and different from battery (between 11 and 15V).
I would assume that battery that would output more than the original PSU can be dangerous but other than that it should be OK.

 

@wlchan

Could you link me to these panasonic batteries with said mhA which would work with my aspire 7535?
Thanks =)

And what do you mean by "rebuild" the battery??

 

Rebuilding simply means to tear the OEM battery apart and replace the old cells with new ones. The most used cells are 18650 with 3.6/3.7V. The mAh keep increasing so you can seek for the latest one with highest capacity for longest battery life. Panasonic & Sanyo brands are the best, followed by LG and Samsung. Other brands aren't worth bothering. Be warned that however, lithium is unstable so extra care must be taken. If you decided to go that route, it's best to crack open your aging battery (drain them first) b4 buying the cells just in case. You can read more from the link below.

How to rebuild a Li-Ion battery pack

 

Oh yes my battery has aged considerably, being my first laptop Is there a link to the Panasonic cells I could buy for my type of battery?? I only found old posts where people want them, but nothing to buy from.

 

Panasonic does have issues with batteries these days (visit 3830/4830/5830 thread for details). I do agree with wlachan on Sanyo though so taking into consideration these issues with Panasonic I would recommend Sanyo cells.

 

How come, from this discussion, the 4800 is cheaper than the 5200?
Battery 4800
Battery 5200

Naturally, I am interested in the second one.

 

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Maybe just ask the seller.