We bought the 80v Kobalt from Lowes couple months ago. I won't go back to a gas powered, just push the power button and go! The battery lasted 3.5 yard mows last time, technically 4 since I mowed the ally once. 2.5-3hrs total run time I think on one charge, to recharge took 1hr. Battery life will be vary based on your yard since the motor is variable speed. Lighter the yard, lower the speed and longer the charge. What's nice is the self-propelled works without the blade running. The mower itself is pretty light, in hindsight really didn't need the self-propelled.