Compared to competitors, Lenovo batteries must be made of gold. I bought a third-party battery for ~$20. As I remember it, Lenovo wanted $75+ (their website indicates $180[1], but I'm not sure if this is the same model battery anymore.) The third-party here was Sony (or, so the battery claimed, at least, though having read enough articles like this I'm not entirely sure anymore). At any rate, the battery worked fine.
This, thankfully, was back in the day when the OEM crapware only loudly complained about me using a "non-genuine battery". Thankfully, the crapware runs only in Windows, and for the most part, I used Linux.
Haven't we seen enough hoverboards go up in flame to know even first-party stuff can sometimes be suspect? (and they're not the only example through the times of flaming batteries.)
Two simple 2300 mA Ni-MH cells from a decent Chinese brand like Pisen already cost $7.50. And you're putting an 8-cell battery on an expensive notebook, then use it on your lap?
This, thankfully, was back in the day when the OEM crapware only loudly complained about me using a "non-genuine battery". Thankfully, the crapware runs only in Windows, and for the most part, I used Linux.
Haven't we seen enough hoverboards go up in flame to know even first-party stuff can sometimes be suspect? (and they're not the only example through the times of flaming batteries.)
[1]: http://shop.lenovo.com/us/en/itemdetails/43R2499/460/2D575BF...