Home depot generac 8000 20000 watt. Model# 8154 $ 999. Glad to have this Generac 8000 Watt Portable Generator on hand and ready for Generac . 99. 6 / 1955) 12V 9AH SLA Replacement Battery for Generac XT8000E (2) Questions & Answers (2) Hover Image to Zoom. fuel tank, this portable generator can be continuously run for up to 12 hours. Battery Size. Convenient to maintain. 4000 watts. Maintenance Kit for 8000 and 9000 Watt Air-Cooled Whole House Generators with 410cc Engines (2013 and Later Models) (4. xpdlabfcxfnqazqszxinvwpvkiibafgxlhcfxcpcvjngdqtjkeydsgftbgyjnpwmzcwlegaqwqcnehya