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August 24th, 2022 15:00

7.4 vs 11.1 volt Battery

Inspiron 7547

Inspiron 7547

Hello, 

It's time for a new battery in my 7547 Inspiron, as it only lasts about 45 min max.

It currently has a 11.1v, 43WHr battery. I can get a 56WHr battery from IFixit, but it's only 7.4 volts. Would the difference in voltage between the 43 and 56 WHr batteries matter in a laptop?

Thanks. 

10 Elder

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23.1K Posts

August 24th, 2022 16:00

The documentation states that the system can have either a 3 or 4 cell battery -- the 4-cell does have a lower voltage.

 

16 Posts

August 24th, 2022 17:00

Right, I did see that. I guess there's not really a performance change with the lower voltage then?

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