- This high quality Li-ion battery pack provides 3900mAh and 11.1 volts of power and is made specifically for the Lenovo ThinkPad T420s and T420si series of portable computers. Meets or exceeds OEM specifications. 6-Cell
- 11.1V. Eqv. 66+
Total Micro’s family of Notebook Batteries includes replacement units and upgrades for every major brand of portable computer. Built with premium quality cells, these batteries are made to meet or exceed OEM specifications. Simply put, Total Micro batteries power your computer longer. No other manufacturer or distributor offers a power product which outperforms the Total Micro line up.