The Max Li comes with (1) reusable xtreme multi-layer filter bag. The Max Li CG comes with (2) reusable xtreme multi-layer filter bags. But that's not all. The Max Li CG has a larger debris chamber then the Max and is considered a Commercial Grade init that is more powerful than the Max Li.
Both units are Lithium powered, and fully rechargeable with a push button ON/OFF start. The units need to charge for 4 hours to receive a full charge, with a run time of up to 1 hour. Both units have a 1-year warranty.