How long does it take for a laptop battery to die?

wellsbbs

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Nov 7, 2012
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How long does it take for a laptop battery to die?
I bought a brand new laptop. I got a top of the line, windows 7 laptop that cost $1000. I bought it 2 months ago and I love it but now the battery is shot. If it's plugged in, it works. But if I unplug it, it says I have 10% battery life. Why is my battery already shot on a brand new laptop? I can't take it back because I bought it in a different state and I moved and no longer have the box or anything. How much does the batteries cost and where do I buy them? :wahoo:

































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Toshiba Laptop Battery Fujitsu Laptop Battery Hitachi Laptop Battery
 

thatguychuck

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Jan 28, 2011
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Most batteries are rated in cycles. Without consulting technical material I couldn't tell you how long your specific batter should have lasted, but it sounds like you got a bum one anyway. I would contact the store you bought it from, or try the brand support.

Most batteries are rated in cycles. So a battery might be rated to fully charge and discharge 300 times or so before performance starts to degrade. Aside from a manufacturing defect, which you appear to have. I've seen "2 years" thrown around a lot, but I've had some last less, some last more. It can change with usage.
 

Onus

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Be careful of cheap eBay batteries. I've used them, and they work, but never last as long; expect to replace them every year or so. OTOH, you can go to a place like Batteries Plus, pay a good bit more, but then have a good battery that may be better and last longer than the original (i.e. a good, working original, which you may not have gotten).
 

Maxx_Power

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Regardless of where you bought the laptop. The manufacturer of the laptop will offer the warranty. So long as you have a receipt (sometimes you don't even need one), just contact the manufacturer. They should offer you a RMA service for your laptop battery.

As far as life of batteries goes, your battery died due to some premature failed cells (these are multi-celled lithium batteries). Without premature failures, batteries can last up to a few years (tops) if the batteries are kept at >50% charge most of the time, and the charging circuitry doesn't aggressively charge the cells. A constant temperature (around ambient room temperatures) environment lengthens the battery life too. I think in this area, the automotive manufacturers have done a lot of research to lengthen the lifespan of their hybrid-electric vehicles.
 
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