How dangerous is it to buy a third-party laptop battery?

Post date: 2020-03-25 04:42:52

My laptop battery is dying and the manufacturer (Lenovo) no longer manufactures or sells an official replacement for it, nor is a replacement battery sold by any large retailer. Should I buy one from a small third party seller?

The only replacement batteries I have been able to find are from small sellers or storefronts on eBay, Amazon, etc. These are either purportedly Lenovo-manufactured (but who knows), or explicitly manufactured by a different company.

I have heard batteries can be dangerous for chemical or fire reasons. How worried should I be about buying a laptop battery from one of these sellers? And is there any aftermarket brand that is more reliable than others?

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