Additionally
| Battery performance |
5400 mAh |
5400mah Thinkpad390,e,x,
This high quality Li-Ion battery pack provides 5400mAh and 11.1 Volts of power and is made specifically for the IBM ThinkPad 390, 390E, 390X, 1700i, 1720i, 1721i, 1750i series of portable computers.