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March 22nd, 2006 00:00

Battery 11.1 volt NOT 14.8 volt --Need INPUT Please

Ordered extra battery for my (delayed & not received E1705 laptop, ordered a 14.8 volt 80 WHR ,     9 cell battery, --GOT a 9 cell 80 WHR, 11.1 volt instead, on 3-9-06). A 11.1 volt battery is not as powerefull as a 14.8 volt, & would like some help, with info. As i have not received any response's to 10-12 e-mail's over last 2 week's to dell support & phone help no good either except they want to charge me to connect to hardware support ?? I don't even have delayed laptop yet !! According to all Dell's chart's & purchasing, ONLY 6 cell battery's are 11.1 volt, & 9 cell battery's are 14.8 volt !! Any help on this appreciated (Dell monitors?? )-----------Dell battery chart below--------------------------------------------------Ordered Extra battery with my (delayed 3 time's E1705 laptop, --yet to receive), BUT received extra battery on 3-9-06. -- ORDERED a 9 cell 80 WHR 14.8 volt battery !! Received a 9 cell 80 WHR 11.1 volt !! It pretty common, that a 14.8 volt battery is stronger & will last longer & more charge's ..After approx. 10-12 e-mail's to Dell support (different dept's), i have yet to receive a return e-mail in the last 2 wks.. Phone support doesn't have a clue, & they want to transfer me to hardware, & charge me for info., when i don't even have my laptop yet !! Trying to get live chat, on this is imposable . According to Dell's battery chart, & sales chart, 0nly 6 cell battery's are 11.1 volt. 9 cell's are 14.8 volt. If anyone out their has any input (DELL monitor?? ) would appreciate it.----(Dell battery chart below)-------------------------------------------------------------------------------------------------------------------------------- Details 16 Cell
132 WHr 12 Cell
96 WHr 9 Cell
80 WHr 8 Cell
65 WHr 6-Cell
56 WHr 6 Cell
53 WHr 6 Cell
53 WHr 4-Cell
32 WHr 4-Cell
29 WHrAvailability by ModelInspiron XPSInspiron XPSInspiron XPS, 9400, E1705, 9300, 6400, E1505, 6000Inspiron 2200, 710m, 700mB120, B130, 1300Inspiron 9400, E1705, 9300, 6400, E1505, 6000Inspiron 600m710m, 700mB120, B130, 1300
Capacity132 WHr96 WHr80 WHr65 WHr56 WHr53 WHr53 WHr32 WHr29 WHr
Voltage14.8 VDC14.8 VDC14.8 VDC14.8 VDC11.1 V11.1 VDC11.1 VDC14.8 V14.8 V
Charge IndicatorNoNoYesNoNoYesYesNoNo
Health GageNoNoYesNoNoYesYesNoNo
Weight2.1 lbs (0.95 kg)1.35 lbs (0.61 kg)0.88 lbs (0.4 kg)1.03 lbs (0.47 kg)0.7 lb (0.35 kg)0.57 lbs (0.26 kg)0.7 lbs (0.31 kg)0.54 lb (0.24 kg)0.53 lb (0.24 kg)
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529 Posts

March 23rd, 2006 16:00

I can barely read what you wrote (please work on your grammar, punctuation, and most importantly, paragraph separation), but if Dell's website is stating that a 9-cell battery is 14.8 volts, it is wrong as that is not possible. Li-Ion cells have a nominal rating of 3.7 volts per cell. Thus 3 cells in series results in 11.1 volts nominal rating, and 4 would result in a 14.8 volt nominal rating.

Note that neither 6 nor 9 are divisible by 4 (the number of cells in series required for a 14.8 volt nominal rating) and so it is not possible for either battery to be a 14.8v battery. 6 and 9 are both divisible by 3.

So the 6-cell battery has 6 cells in a 3-series 2-parallel arrangement, while the 9-cell battery has a 3-series 3-parallel arrangement. The voltage does not increase, but assuming identical cell sizes, the capacity increases by 50%.

The only spec that REALLY matters is the total capacity rating in watt-hours, which is the nominal voltage multiplied by the capacity of the battery in ampere-hours.

The 4, and 8 cell batteries will be 14.8 volt batteries, the 6 and 9 cell batteries will be 11.1 volt batteries, the 12 cell battery could be either. It doesn't matter anyway, as I said before, only the watt-hour capacity matters.

12 Posts

March 23rd, 2006 17:00

If you go to purchase Inspirion E1705, or better yet, CONFIGURE E1705, stroll down to battery option's, --you can get a 6 cell or 9 cell, --(CLICK on help me decide ?? option above right side of battery section, & open it, --Then open detail's, --it will show you all dell computor 's, & under them, is battery suppose to use --ALSO,  go to upper Dell banner, and put mouse on service & support & put mouse on it ,--then look for PART'S FOR DELL, --mouse on it, & it will show  NOTEBOOK BATTERY CENTER, --click on it, --then go to top lefrt for Insirion or XPS Notebook's, click it,--then click on E1705, & you will see 2 choice's, 14.8 volt 80whr 9 CELL, for $179---or 6 CELL 11.1 volt 80whr for $149  !!--------Also, on last post you wined about , that is the way it came out when i copy'd & pasted all dell laptop's & battery configuration's for each one came out.--go to that site and you shall see mathtician.

529 Posts

March 24th, 2006 14:00

Well, your reply which didn't have any cutting/pasting was just as hard to read.

And as I said in my previous post, if Dell is claiming that their 9-cell batteries are 14.8 volts (which the specs page does say), the documentation is wrong. It is simply not possible for a lithium ion battery to have 9 cells and a nominal voltage of 14.8 volts.

Yes, that page is in error. Yes, it should be fixed. No, it's not a big deal as the most important specification is not the voltage but the energy capacity in watt-hours, which is correct. Assuming identical cells, a 9 cell battery will have 1.5 times the energy capacity of a 6-cell battery, and in this case, 80 watt hours is equal (within rounding errors) to 1.5 times 53 (which is 79.5).

Here's a good example: Which is better, a 9v battery (you know, the commonly available square ones) or 4 AA cells (nominal voltage of 6 volts if they are alkalines).

The answer is the 4 AA cells despite the lower nominal voltage - Their power handling capacity and energy capacity is far higher than the 9v battery. In fact, this even holds true for a pair of AA cells.
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