Strengths: Original Lenovo battery

Weaknesses: Heavy sucker

Summary: The battery is original from manufacturer and has no issues upon initial use. The battery time left after a full charge at high performance settings with all wireless devices on is 4.5 hours. I just hope this battery lasts more than the 14 or so months the original lasted that had to be replaced with this one.

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Strengths: Reliable battery

Weaknesses: Hard to find

Summary: Would like to speak to someone regarding a business resale pricing.

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Strengths: great battery life.

Weaknesses: It's slightly larger than the 4-cell battery, but much worth it.

Summary: No complaints really. I can get about 6 hours per charge usually. (depends on whether I use internet or not and what brightness my x60 is) It's wonderful that I don't need to recharge when having 4 hours/day of med school classes..

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Strengths: Insane battery life. Being able to increase the screen brightness to max without worry. Laughing at the power alerts. Oh no - I'm at 11% and only have 45 minutes to finish up! Whatever shall I do?

Weaknesses: It's a big honking battery - it increases the system weight by half a pound.

Summary: If you need to work off the battery and want to avoid the possibility of your computer getting tired before you do, you need this. It also makes a pretty good handle. The capacity of all batteries drops with age - this is one I see still being useful in several years.

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