Thanks. I’ll try that brand. I buy mine from Encompass, the official seller of Lenovo batteries. So they shouldn’t be knockoffs, nor unsealed. But, one battery

Thanks. I’ll try that brand. I buy mine from Encompass, the official seller of Lenovo batteries. So they shouldn’t be knockoffs, nor unsealed. But, one battery went from 90% health down to 30% in the course of six months. And they’re not cheap!