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Just like other batteries, it depends on the usage. If you have everything set to max performance and are using wifi then the battery will run out a lot faster than if you conserve power. Expect to get 6 1/2 hours usage if you are using max settings and around 8 1/2- 9 if you conserve. The other thing to consider is the extra weight a battery of this size will add.

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11y ago
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13y ago

There is no way to tell with just the battery voltage given.

It is the current capacity of the battery that counts, not the voltage. Further, the laptop design itself determines much of the hour life.

I have seen a high-power laptop meant for intensive imaging work that had a 45-minute battery discharge time, and other laptops with as much as 6 hours battery discharge time.

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14y ago

For internet browsing/MSword you can have 4-5 hrs

For basic gameplay you can have 2.5-4

For watching movies you can have 3-4

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13y ago

It depends which computer the battery is supplying.

9 cell batteries will last quite long, in the region of 5/6 hours depending on the laptop/battery model.

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10y ago

I have an Ultrabook with and intel core i5 and my 3 cell battery lasts anywhere from 5 to 8 hours depending on usage.

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13y ago

it depends on what features your laptop has. research your laptop on Google.com. cnet has good reviews which usually says battery life.

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8y ago

That depends on how much drain the device places on the battery !

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Q: How long does a 2 cell battery for a laptop last?
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