Acer 3810 different batteries

Hi,

since the 3810 is really noisy with AC plugged in, I decided to buy another battery to only run it on batteries.
But I found several different models running with the 3810 so I am confused and wonder if anyone has made experiences with original/3rt party batteries and would recommend a particular one. What I found so far are

4400 mAh; 6 cells; non-original EUR 34
6600Mah; 9 cells ; non-original; EUR 42
5600mAh; ?? cells; ORIGINAL; EUR 115
5600mAh, ?? cells; "100% New Genuine Lithium-Ion Rechargeable Battery" EUR 37

In particular, are the 6 and nine cells akkus of equal size or how much will it exceed the laptop??
And are original batteries worth thrice the price??
The original one has only six cells right?? I did not find any ORIGINAL 9 cells battery or do they not exist?

Thanks for any clarification & cheers

 

5600mAh is 6 cells as i know.
in acer website High-capacity: 94 W 8700 mAh 9-cell Li-ion battery pack contains model 3811t, maybe they are compatible with 3810 because chasis 3810 is the same 3811;/

 

Don't bother buying 3rd party batteries. You don't know what cells are being shoved in. I purchased a 5200mah battery off ebay from a reputable HK dealer and within 2 full battery cycles capacity went down to 4400mah. I'm sure now the 2600mah 18650 cells inside are really 2200mah since capacity hasen't changed since several battery cycles.

 

Tend to agree that the best usage time and life comes from OEM batteries but when you can have 2 or 3 3rd party batteries for the same money that does appear to be another option . . . Additional capacity (real or imagined) over original should not proved a problem . . but try to get the volts to match those of your original or a manufacturers alternative longer life battery.