Is it safe to buy a replacement laptop battery that has slightly different voltage than the original?

Posted by Hugoagogo on Super User See other posts from Super User or by Hugoagogo
Published on 2011-03-14T11:24:29Z Indexed on 2011/03/14 16:14 UTC
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laptop

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battery

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acer

I'm looking for a new battery for my Acer Aspire 4741g laptop. I am trying to get a higher capacity battery.

Many sites (like this one and this one) list batteries that are interchangeable with the battery that came with the laptop (AS10D41). These batteries have higher capacity, but also marginally lower voltage (11.1V vs. 11.8V). Is this a problem? Does it mean that the battery is actually incompatible? The replacement battery I am looking at is AS10G3E, and is listed in many places as being compatible with the AS10D41, but nobody makes any mention of the differing voltages.

I am trying to find out what kind of problems a lower voltage battery can cause. I know P=IV; with reduced voltage, will the machine draw more current, possibly damaging components? I'm just speculating, but I'm worried about the chance that using a battery at a lower voltage will damage my laptop.

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