This is a new Lenovo 5B10P23779 battery for the IdeaPad 110s 120s 130s models.

This Lenovo 5B10P23779 battery is 100% compatible with the original battery specifications and is individually tested and backed by a 2 Year warranty. This Lenovo 0813007 battery is rated 7.5 volts and 31 Whr/ 4140 mAh and will normally last 5-7 hours on a full charge.

You can expect about 2 hours to 4 hours of run time with this Lenovo 5B10P23779 battery when new, depending on your energy use.