This is a new Lenovo IdeaPad 130S-11IGM battery. This Lenovo IdeaPad 130S-11IGM battery is rated 7.5 Volts and 31 Whr and will normally last 5 hours on a full charge.

This Lenovo IdeaPad 130S-11IGM battery is 100% compatible with the original battery specifications and is individually tested and backed by a 2 Year warranty. This Lenovo IdeaPad 130S-11IGM 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 IdeaPad 130S-11IGM battery when new, depending on your energy use.