Wicked_Sludge
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- Aug 6, 2007
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- Westport, WA
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- Ford
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maybe its the lack of sleep, or maybe dell is lying....but heres my deal:
old dell inspiron notebook. original battery died after so many years. took it apart to find they used 8 slightly-larger-than-AA-cell batteries to make the pack. thats fine, the computer is plugged in most of the time, so i replaced them with 8 AA Ni-MH cells from wally world...thinking the new lower capacity batteries should still out-perform the old but higher capacity originals, which they did. but things have changed and i need my capacity back.
the side of the original cells are printed with an amazing 4.5 AH rating (or 4500 MAH, or 5.4 watt-hours)...X8 means the original capacity was 43 watt-hours, which is confirmed by what dell sells on their site. my problem is i cant find any cells even CLOSE to that capacity. hardly anything is over 3000 MAH even in D size (which wouldnt fit anyway). i was even looking at lithium ion batteries which should have a way higher energy density than the Ni-HM originals but those are all rated right around 2500-3000 MAH too...about the same as most AA-size Ni-HMs.
so my question is this: where the heck did dell get these amazingly high capacity Ni-HM batteries? what size are these things? they are slightly larger in diameter and about an inch longer than a standard AA. even more confusing, they offer an even higher capacity (65 watt-hours, still with 8 cells) optional battery. im confused!
old dell inspiron notebook. original battery died after so many years. took it apart to find they used 8 slightly-larger-than-AA-cell batteries to make the pack. thats fine, the computer is plugged in most of the time, so i replaced them with 8 AA Ni-MH cells from wally world...thinking the new lower capacity batteries should still out-perform the old but higher capacity originals, which they did. but things have changed and i need my capacity back.
the side of the original cells are printed with an amazing 4.5 AH rating (or 4500 MAH, or 5.4 watt-hours)...X8 means the original capacity was 43 watt-hours, which is confirmed by what dell sells on their site. my problem is i cant find any cells even CLOSE to that capacity. hardly anything is over 3000 MAH even in D size (which wouldnt fit anyway). i was even looking at lithium ion batteries which should have a way higher energy density than the Ni-HM originals but those are all rated right around 2500-3000 MAH too...about the same as most AA-size Ni-HMs.
so my question is this: where the heck did dell get these amazingly high capacity Ni-HM batteries? what size are these things? they are slightly larger in diameter and about an inch longer than a standard AA. even more confusing, they offer an even higher capacity (65 watt-hours, still with 8 cells) optional battery. im confused!