Cheap Laptop Batteries: Good Deal or Risky?
Be careful when shopping for a replacement laptop battery.
Regardless of the cost, the safest approach is to only purchase batteries from the company that made the computer.
The batteries in laptop computers are expensive (a quick review of prices at Lenovo.com shows they range from $119 to $179), and like any battery, they have a limited lifespan. When it comes time to replace the battery inside your laptop computer, you may be tempted to save a few bucks and buy a replacement from a company other than the one that made the computer.
The lesson here is to only buy replacement batteries from the company that made the computer. Off-brand batteries are more likely to scrimp on safety features.