Honda CM91 Honda 90 (C90M) (1966-1969) The Honda CM91 Honda 90 Battery (C90M) (1966-1969) cross-references to the below. Conventional power sport battery that is lead acid that are shipped dry and must be activated and charged by the customer. Our other batteries, unless otherwise specified, are sealed lead acid batteries. This is a wet-type battery where acid must be added. The acid is not included and must be purchased separately . You can purchase lead acid electrolyte. . . Conventional power sport battery that is lead acid that are shipped dry and must be activated and charged by the customer. Our other batteries, unless otherwise specified, are sealed lead acid batteries. This is a wet-type battery where acid must be added. The acid is not included and must be purchased separately . You can purchase lead acid electrolyte at most auto parts stores, Sears Auto, AutoZone, O’Reilly, or CARQUEST auto parts stores. 2 6 6   3.9 2.3 4.4 1 Year Power Max No http://site.apexbattery.com/logos/honda.jpg New P